Shallow stratigraphic core tests on file at the Florida Geological Survey ( FGS: Information circular 103 )

STATE OF FLORIDA
DEPARTMENT OF NATURAL RESOURCES
Elton J. Gissendari~rer, Executive Director

DIVISION OF RESOURCE MANAGEMENT
Art Wilde, Director

BUREAU OF GEOLOGY
Walter Schmidt, Chief

INFORMATION CIRCULAR NO. 103

SHALLOW STRATIGRAPHIC CORE TESTS ON FILE
AT THE
FLORIDA GEOLOGICAL SURVEY

Compiled by

Richard A. Johnson

NWERSITY OF FLORIDA LIBRARIES

Published for the
FLORIDA GEOLOGICAL SURVEY
TALLAHASSEE
1986

CB6-00 902

DEPARTMENT
OF
NATURAL RESOURCES

3 1262 04267 6501

/

SCLKNC
traragy

BOB GRAHAM
Governor

GEORGE FIRESTONE
Secretary of State

JIM SMITH
Attorney General

BILL GUNTER
Treasurer

RALPH D. TURLINGTON
Commissioner of Education

GERALD A. LEWIS
Comptroller

DOYLE CONNER
Commissioner of Agriculture

ELTON J. GISSENDANNER
Executive Director

LETTER OF TRANSMITTAL

Bureau of Geology
August 1986

Governor Bob Graham, Chairman
Florida Department of Natural Resources
Tallahassee, Florida 32301 -.

Dear Governor Graham:

The Bureau of Geology, Division of Resource Management, Depart--
ment of Natural Resources, is publishing as its Information Circular No.
103, Shallow Stratigraphic Core Tests On File at the Florida Geological
Survey. This is a compilation of descriptions of all geological cores on file
at the Florida Geological Survey's repository. As such, it represents a
major data base for the geology of Florida. This will be a valuable source
of geological data for scientists, government agencies, educators, and
the public.

Respectfully yours,

Walter Schmidt, Chief
Bureau of Geology

Printed for the
Florida Geological Survey

Tallahassee
1986

ISSN No. 0085-0616

iv

CONTENTS

Page

Florida Geological Survey core
and well cuttings
depository .............
Organization of report ......
Well Logs ...............
Alachua County .........
W -11486 ...........
W -12487 ...........
W -12613 ...........
W -12614 ...........
W-14641 ...........
Baker County ...........
W -10473...........
W -12361 ...........
W -13805 ...........
W -13812 ...........
Bay County ............
W. W -13965 ...........
W-14101 ...........
W-14108 ...........
Bradford County ........
W -12360 ...........
W -13814 ...........
W -14255 ...........
W -14280 ...........
W -14283 ...........
Brevard County .........
W -13076 ...........
W 13490 ...........
W-13881 ...........
W -13964 ...........
Calhoun County .........
W -11270 ...........
W -14125 ...........
W -15502 ...........
W W-15506 ...........

1
2
5
5
5
6
7
8
9
10
10
11
12
13
14
14
15
16
17
17
18
19
20
21
23
23
24
25
26
27
27
28
29
30

Calhoun County (cont.) ...
W -15508 ........... 31
W -15511 ........... 32
W-15513 ........... 33
Charlotte County ........ 34
W-10748 ........... 34

W -10749 ...........
W -10750 ...........
W-10751 ...........
W-10752 ............
W -10753...........
W -10754...........
W -10755...........
W-10756 ...........
W -10757 ...........
W -10758 ...........
W -10759 ...........
W-10760 ...........
W -10761 ...........
W -11489 ...........
W -11490 ...........
W -11491 ...........
W -11669 ...........
W -11907 ...........
W -15289 ...........
W -15332 ...........
W -15333 ...........
Citrus County ..........
W-12362 ...........
W-13863 ...........
W-14671 ...........
W-14885 ...........
Clay County ..........
W -10481 ...........
W -10488 ...........
W-10489 ...........

35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
56
57
58
59
60
60
61
62

Page

Page

Clay County (cont.) .
W-13769 ......
W-14179 ......
W- 14193 ......
W-14219 ......
W-14301 ......
W- 14476 ......
W-14521 ......
Collier County .....
W-14003 .....
W-14302 ......
W-15274 ......
W-15275 ......
W 15557 ......
Columbia County ...
W -7171 .......
W-13809 ......
W-15162 ......
DeSoto County ....
W-12050 ......
W-12236 ......
W-12237 ......
W-12242 ......
W-12243 ......
W-12244 ......
W-12245 .....
W-12311 .....
W-12312 .....
W-12908 .....
W-12909 .....
W-12948 .....
W-15303 .....
Dixie County .....
W 1565 ......
W-1571 ......
W-1572 ......
Duval County ....

63
64
65
66
67
68
70
72
72
73
74
75
76
77
77
78
79
80
80
81
82
83
84
85
86
87
88
89
90
91
92
94
94
95
96
97

W-14619 ........... 97

Escambia County ..
W-13559 .....
W-13572 .....
W 13592 .....
Flagler County ....
W-15282 .....
Franklin County ...
W-7574 ......
W- 14781 ....
W-14799 .....
W-14844.....
W-14876 ....
W-14890....
Gadsden County .
W-1478 .....
W-1479 .....
W-1780 .....
W-7376 .....
W-7458 .....
W-7472 .....
W-7528 .....
W-7537 .....
W-7539 .....
W-15468 ....
W-15795 ....
Gilchrist County..
W-12529 ....
Gulf County .....
W-12051 ....
W-14077 ....
W-14704 ....
W-14719....
W-14746 ....
Hamilton County .
W-6836 .....
W 7934 .....
W-10656 ....
W-15121 ....

...... 98

98

. 99
.100
.101
.101
.102
.102
.103
.104
.105
.106
.107
.108
.108
.109
.110
.111
.112
.113
.114
.115
.116
.117
.118
.119
.119
.120
.120
* .121
. .122
. .123
. .124
. .125
..125
..127
. .128
..129

Page

.....

Page

Hardee County ......... 130
W -8880 ............130
W -11946 ........... 131
W -12113........... 132
W -12233 ...........133
W -12234 ........... 134
W -12235 ...........135
W -12238 ...........136
W -12906 ...........137
W -12907 ...........138
W -12942 ...........139
W -12985 ........... 140
W -13073 ........... 141
W-13078 ...........142
W -13107 ...........143
W -13237 ........... 144
W -13238 ........... 145
W -13333 ........... 146
W-15346 ...........147
Hernando County ........ 149
W-14873 ...........149
Hillsborough County ..... 150
W -11531 ...........1 50
W -11541 ...........1 51
W -13331 ...........152
W -15161 ...........153
W -15494 ...........154
Indian River County ......155
W-13958 ...........155
Jackson County .........1 57
W -1777 ............157
W -1779 ............1 58
W -15503 ............ 59
W -15504 ........... 160
W -15505 .......... .161
W -15509 ...........162
W -15510 ...........163

Jackson County (cont.)
W -15512 ........
W -15514 ........
Jefferson County .....
W 6526 .........
W 6527 .........
W-6559 .........
W 6560 .........
W-6561 .........
W 6906 .........
W -6911 .........
W -6925 .........
W-6927 .........
W 6930 .........
W -6931 .........
W -6933 .........
Lafayette County .....
W-1566 .........
W-1575 .........
W -1576 .........
W -1578 .........
W-1579 .........
W -1580 .........
W-1581 ........
W-1583 ........
W -1584 .........
W -1585 .........
W-1586 .........
W-1587 ........
W -1696 ........
Lake County .......
W-12698 .......
W-12699 .......
W 12700 .......
W -12701 .......
W-12702 .......
W-12735 .......
W-12745 .......

. .164
...164
. .165
. .166
...166
...167
. .168
...169
. .170
. .171
...172
. .173
...174
...175
. .176
. .177
...178
. .178
. .179
...180
. .181
. .182
. .183
...184
...185
...186
...187
...188
...189
. .190
. .191
...191
...192
S...193
...195
,.. .197
....198
....199

Page

Lee County ........
W-14071 .......
W -14072 ......
W 15286 .......
W-15287 .......
W 15487 .......
W -15556 .......
Leon County .......
W-6599 ........
W 6890 ........
W-6900 ........
W 6902 .......
W-6937 ........
W 6998 ........
W 6999 ........
W-7180 .......
W-7181 ........
W 7523 ........
W-7524 .......
W 7575 ........
W 7526 .......
W-7527 .......
W 7536 .......
Levy County ......
W-1564 ......
W-7111 .......
W-7112 ......
W-7113 .......
W-7114 .......
W-7115 .......
W-7116 .......
W-7117 .......
W-7118 .......
W-7619 .......
W 7620 .......
W-7621 ......
W 7622 ......
W-7623 .......

Page

.200
.200
.201
.202
.203
.204
.205
.206
.206
.207
..208
..209
..210
..211
S.212
S.213
..214
..215
..216
..217
..218
..219
..220
..221
..221
..222
..223
..224
..225
..226
..227
..228
..229
..230
..231
..232
..233
..234

Page

Levy County (cont.) ......
W -12581 ........... 235
W-12582 ...........236
W-12583 ...........237
W-12615 ...........238
Liberty County ..........239
W -6611 ............239
W-6901 ............240
W-7457 ............241
W-7535 ............242
W-7616 ............243
W-12818 ...........244
W-12819 ...........245
W-12820 ...........246
W -12821 ........... 247
W-14906 ........... 248
W-14925 ...........249
W-14969 ...........250
W-14993 ...........251
W-14996 ...........252
W-15497 ...........253
W-15498 ...........254
W -15499 ........... 255
W-15500 ........... 256
W -15501 ........... 257
W -15507 ........... 258
Madison County ........259
W-10480 .......... 259
W-10654 .......... .260
W-10655 ...........261
W-15515 ...........262
W -15537 ........... 263
Manatee County ........ 264
W-11570 ........... 264
W-15166 ...........265
W-15286 .......... 266
W -15516 ........... 267
W-15517 ...........268

Page

Manatee County (cont.) ...

W-15518 ....
W-15519 ....
W-15520 ....
W-15521 ....
Marion County ...
W 6903 .....
W-12415 ...
W-14315 ...
W-14327 ...
W-14752 ...
W-15127 ...
Martin County ..
W-15246 ...
W-15288 ...
Monroe County .
W-15493 ...
Nassau County .
W-10482 ...
W-13815 ...
Okaloosa County
W-10833 ...
Orange County .
W-10830 ...
W-15334 ...
Osceola County .
W 7658 ....
W-13482 ...
W-13489 ...
W-13496 ...
W-13501 ...
W-13516 ...
W-13533 ...
W-13534 ...
W-13551 ...
W-13676 ...
W-13942 ...
W-13957 ...

"

........298

.269
.270
.271
.272
.273
.273
.274
.275
.276
.277
.278
.279
.279
.280
.281
.281
.282
.282
.283
.284
.284
.285
.285
.286
.287
.287
.288
.289
.290
.291
S.292
1 .293
S.294
. .295
. .296
. .297

Pasco County ..
W-10321 ...
W-10468 .. .
W-10469 ...
W-10470 ...
W-10471 ...
W-10472 ..
W-14674..
W-14675..
Pinellas County
W-10403..
W-10404..
W-10405 .
W-10406..
W-10407..
W-10408 ..
W- 10409 ..
W-10410 ..
W-10411 ..
W-14518..
W-14879 ..
W-14881 ..
W-14897 ..
W-15204 ..
Polk County...
W- 8879 ...
W-10253..
W-10254..
W-12964..
W-12965 ..
W-12966 ..
W-12967 ..
W-13048..
W-13050..
W-13052..
W-13053 ..
W-13054..
W-13055..

Page

. .299
. .299
. .300
. .301
. .302
. .303
. .304
. .305
..306
. .307
..307
..308
. .309
..310
..311
. .312
. .313
..314
..315
..316
. .317
..318
..319
. .320
..321
. .321
..322
. .323
..324

..325
,..326
...327
S..328
...329
...330
. .331
. .332
...333

Page

Polk County (cont.) .
W-13056 ......
W-13059 ......
W-13060 .....
W-13061 ......
W-13065 ......
W-13068 ......
W-13245 ......
W-13269 ......
W-13334 ......
W-13491 ......
W-15261 ......
W 15347 ......
Putnam County ....
W 8400 .......
W -12112 ......
W-14318 ......
W-14346 ......
W-14353 ......
W-14354 ......
W-14376 ......
W-14477 .....
W-14556 ......
W-14594 ......
St. Johns County ...
W-13744 ......
W -13751 ......
W-13765 ......
W 13844 .....
W-14413 .....
Santa Rosa County
W-13604 .....
Sarasota County .
W-11908 .....
W-12983 .....
W-12984 .....
W-13018 .....
W-14871 .....

.....334
.....335
.....336
..... 337
.....338
.....339
..... 340
.....341
.....342
.....344
.....345
.....346
.....347
..... 347
.. .. 348
.....349
.....350
.....351
.....352
.....353
.....354
.....355
.....356
..... 357
.....357
.....358
.....359
.....360
.....361
......362
..... 362
. ... 363
..... 363
...... .364
......365
......367
......369

Sarasota County (cont.) ...
W -14872 ...........370

W-14882 ....
W-15168 ....
Suwannee County
W-1588 ...
W-10657 ...
Taylor County .
W-1567 ....
W-6359 ....
W-10425 ...
W-10429 ...
W-10454...
W-10455...
W-10456 ...
W-10457 ...
W-10458 ...
Volusia County .
W-12021 ...
W-12022 ...
W-12023 ...
W-12024 ...
W-12025 ..
W-12026 ...
W-12027 ..
W-12028 ..
W-12029 ...
W-12030 ...
W-12031 ...
W-12032 ...
W-12033...
W-12034 ...
W-15290 ...
Wakulla County .
W-8477 ....
Walton County .
W-7971 ...

.371
.372
.373
.373
.374
.375
.375
.376
.377
.378
.379
.380
.381
.382
.383
.384
.384
.385
.386
.387
.388
.389
.390
.391
.392
.393
.394
.395
.396
.397
.398
.399
.399
. .400
* .400

Page

Page

Walton County (cont.) ....

W-7972 ...........
W 7973 ...........
W 7974 ...........
W 8004 ...........
W -8012 ...........
W -8013 ...........
W 8014 ...........
W -8019 ...........
W -8102 ...........
W -8103 ...........
W-8104 ...........
W -8105 ...........
W-8351 ...........
W-8352 ..........
W-8353 ...........
W 8354 ...........

Walton County (cont.) .

.401
.402
.403
.404
.405
.406
.407
.408
.409
.410
.411
.412
.413
.414
.415
.416

W 8355 ......
W 8356 ......
W 8478 ......
W-8587 ......
W-8591 ......
W-8592 ......
W 8865 ......
W-8873 ......
W 8876 ......
W-8877 ......
W-10832 .....
W-10914 .....
W-11045 .....
Washington County
W-10954 .....
W-11487 .....

......417
......418
......419
......420
......421
...... 422
...... 423
...... 424
......425
......426
......427
......428
......429
......430
......430
......431

FIGURE

Page

1 Well and core numbering and location system used by the
Florida Geological Survey ........................

Page

.1

FLORIDA GEOLOGICAL SURVEY CORE AND WELL CUTTINGS
DEPOSITORY

The ability of the Florida Geological Survey to carry out geologic inves-
tigations is highly dependent on the Survey's substantial data base.
Because Florida is low in elevation with little surface relief, most geologic
data has been compiled from subsurface information sources. Collected
over decades, these data include over 4,500 geophysical wireline logs,
nearly 16,000 sets of well cuttings, and approximately 500 cores, in
addition to core chips representing hundreds-of-thousands of feet of sed-
iments from exploratory oil and gas test wells. These samples, which
have been collected from locations throughout the state, are essential to
the study of Florida's geology.
The majority of these samples are well cuttings which, upon receipt at
the Survey, are washed, dried, catalogued, and stored for future refer-
ence. Detailed lithologic descriptions of these well cuttings and cores are
prepared by Survey geologists who then enter coded descriptions into a
computer. These data are accessible to staff, government agencies,
industry and the general public. The well cuttings and core collection is
stored at the Geological Survey Depository and is available for study by
visiting scientists.
The logs included in this circular are all from shallow cores (less than
2,000 feet in depth) on file at the Survey. Deep cores from oil and gas
wells are not included in this compilation. Additional cores are acquired
by the Depository on a regular basis; as a result, there may be other cores
available that are not included here.
The study of the lithologic characteristics and the stratigraphic extent
of the surface and subsurface formations in Florida is a critical part of our
knowledge regarding: the occurrence and availability of ground water;
the possible near-surface contamination of our aquifers; landfill and
waste disposal placement; mineral resource mapping; geologic hazards
mapping; and general community planning.
The stratigraphic logs included in this report are representative of the
geology found within each county in Florida. This information can be
used as a guide by governmental agencies, communities and private land
owners planning to develop groundwater resources. The type of material
to be drilled through, the probable waterbearing zones, the depth of
casing and probable depth of the completed well can be estimated from
this data base.
More detailed lithologic descriptions may be available at the Florida
Geological Survey. Other information such as wireline geophysical logs
and water level measurements may also be on file. Information regarding
these data can be obtained by writing the Florida Geological Survey, 903
W. Tennessee Street, Tallahassee, FL 32304; or by calling 904/488-
9380.

BUREAU OF GEOLOGY

ORGANIZATION OF REPORT

The core logs are listed alphabetically by counties. Within each county
they are in numerical order by their "W" number (which are assigned in
sequential order as the cores are received by the Florida Geological Sur-
vey). A tabular listing in this format is in the table of contents. A map in
the pocket shows the location of the cores. Additional copies of this map
can be obtained by requesting Map Series No. 111 from the Florida
Bureau of Geology.
The individual core logs display general core information along with the

stratigraphic summary.
lows:
Accession No .....

Core Name.......

Owner ........

Date Drilled ......

Driller. ..........

County .........

Township/Range
Locations ......

The core information can be interpreted as fol-

W#, this is the well number assigned by the
Florida Geological Survey.
the name assigned to the core (this is gener-
ally the name of a nearby feature or the land
owner).
the land owner where the core was drilled, if
known. If not known, Florida Geological Sur-
vey is entered.
the best information from files when the core
was completed.
the agency or private contractor who drilled
the core.
the Florida county name in which the core is
located.

the location of each core is based upon a rec-
tangular numbering system of township,
range and section. The number consists of
five parts. These are: 1) a prefix letter desig-
nating W for well(core), 2) the township-
(North or South), 3) the range(East or West),
4) the section(1-36) and 5) the quarter/
quarter location with the section, if known.

The basic rectangle is the township, which is
6 miles square (36 square miles). Each town-
ship is numbered consecutively both north
and south of the Florida Baseline. This basic
rectangle is also consecutively numbered
both east and west of the Principal Meridian.
The Baseline and. Principal Meridian met in
Tallahassee. Each township is divided equally
into 36 one-mile square blocks called sec-
tions, and are numbered 1 through 36 as
shown on figure 1.

zm

0

C,
r1

0a
0

LO

Figure 1. Well and core numbering and location system used by the Florida Geological Survey.

BUREAU OF GEOLOGY

Township/Range
Locations cont'd

Latitude/Longitude

Surface Elevation..

Core TD.........

Geophysical Log
Available. ......

Stratigraphic
Description

The sections are divided into quarters with
the quarters labeled "a" through "d" as
shown on figure 1. In turn each of these one-
quarter sections is divided into quarters with
these quarter/quarter squares labeled "a"
through "d" in the same manner. The "a"
through "d" designation of quarters may be
continued to any extent deemed useful.
estimated from the USGS 7.5 minute quads.
This is based on the best information in the
files.
referenced to mean sea level, in feet. Most of
these are estimates from USGS quads. As a
result a possible error of several feet may
occur.
the total depth of the core measured in feet
from land surface.

if wireline logs were run they are filed at the
Survey in Tallahassee.

A Acoustic Velocity
C Caliper
E Electric (normal, lateral, SP)
G Natural Gamma
L Lateral
N Neutron (porosity)
P Single point resistivity
R Fluid resistivity or conductivity
S SP
T Temperature
V Fluid velocity (flow meter)
X Gamma Gamma (density)

this is a brief summary of the lithologic com-
ponents that comprise the various formations
encountered in the core, and includes who
described the core and when. A more detailed
foot-by-foot description, columnar section or
other data may be available at the Florida
Geological Survey.

INFORMATION CIRCULAR NO. 103

Accession No.: W-11486 Core Name: Hawthorne #1
Owner: Florida Geological Survey Date Drilled: 8/72
Driller: Florida Geological Survey County: Alachua
T10S R22E S31 1/4 acb Lat/Long: 29034'54"/82008'07"
Surface Elevation: 100' Core TD: 145'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0-10 ft. Undifferentiated
Quartz sand, very-fine- to medium-grained, unconsolidated to poorly
indurated, nonclayey to clayey, trace heavy minerals.

10-134 ft. Hawthorn Group

10 44.5 ft. Coosawhatchie Formation
Predominantly quartz sand with clay and dolomite beds. Quartz sand,
yellowish gray, very fine to medium, poor induration, clayey, dolomitic to
calcareous, phosphatic. Dolomite, yellowish gray to light orange, poor
induration, sandy, clayey, phosphatic, varies to calcilutite.

44.5-104.5 ft. Marks Head Formation
Interbedded dolomite, sands and clays. Dolomite, yellowish, gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, yellowish gray, sandy, phosphatic, dolomitic, moderate indu-
ration.

104.5-134 ft. Penney Farms Formation
Predominantly dolomite with sand and clay in lower member. Quartz
sand, light gray to yellowish gray to olive-gray, clayey, dolomitic, phos-
phatic, very fine to coarse, poor induration. Clay, light gray to brownish
gray, sandy, phosphatic, dolomitic, moderate induration. Dolomite, yel-
lowish gray to light gray, sandy, phosphatic, clayey in zones, mollusk
molds, poor to good induration.

134- 145 ft. Ocala Group

134- 145 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
moderate to good induration.

BUREAU OF GEOLOGY

Accession No.: W-12487
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T9S RT8E S27 1/4 bc
Surface Elevation: 100'
Geophysical Logs Available:

Core Name: Green Acres #1
Date Drilled: 2/75
County: Alachua
Lat/Long: 29040'23"/82030'04"
Core TD: 85'

STRATIGRAPHIC DESCRIPTION

Described by: R. Hoenstine

Date: 1984

0 25 ft. Undifferentiated Sand and Clay
Unconsolidated to poorly indurated, gray to brown, fine- to medium-
grained, clayey sand. Mottling, iron-staining and rootlets present.

25-85 ft. Ocala Group Undifferentiated
Moderately indurated, white, micritic, vugular, fossiliferous limestone.
Fossils present include mollusks, abundant Lepidocyclina sp. and fossil
molds.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12613
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T9S R18E S27 1/4 bc
Surface Elevation: 100'
Geophysical Logs Available:

Core Name: Green Acres #2
Date Drilled: 2/75
County: Alachua
Lat/Long: 29040'20"/82029'59"
Core TD: 219'

STRATIGRAPHIC DESCRIPTION

Described by: R. Hoenstine

0-23 ft. No Sar
23 25 ft. Alachu.

Date: 1984

iples
a Formation/Hawthorn Group Undifferenti-

ated
Moderately indurated, gray to grayish white, iron-stained, clayey lime-
stone with phosphate nodules.

25- 171.5 ft. Ocala Group Undifferentiated
Moderately indurated, white, micritic, fossiliferous limestone. Fossils
present include mollusks, foraminifera, algae and numerous fossil molds.

171.5-219 ft. Avon Park Limestone
Well indurated, gray to grayish tan, tightly crystalline dolomite. Mollusk
molds present.

BUREAU OF GEOLOGY

Accession No.: W-12614
Owner: Florida Geological Survey
Driller: Florida Geological Survey
TTtS R19E S17 1/4 bd
Surface Elevation: 65'
Geophysical Logs Available:

Core Name: Kanapaha Ranch #1
Date Drilled: 2/75
County: Alachua
Lat/Long: 29032'03"/82025'31"
Core TD: 128'

STRATIGRAPHIC DESCRIPTION

Described by: R. Hoenstine

Date: 1984

0- 10 ft. No Samples
10- 17.5 ft. Alachua Formation?
Poorly indurated, white to grayish white, phosphatic, fossiliferous lime-
stone. Fossils present include mollusks.

17.5-34 ft. Hawthorn Group Undifferentiated
Poorly to moderately indurated, gray, phosphatic, sandy clay. Iron-
staining and mottling present.

34- 128 ft. Ocala Group Undifferentiated
Moderately to well indurated, cream to gray, micritic, fossiliferous lime-
stone. Intervals of dolomitic limestone present in the lower part of the
section. Fossils include foraminifera, mollusks and fossil molds.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14641 Core Name: Devil's Millhopper #1
Owner: Dept. of Natural Date Drilled: 6/80
Resources County: Alachua
Driller: Florida Geological Survey Lat/Long: 29042'50"/82023'43"
T9S R19E S15 1/4 ad Core TD: 132'
Surface Elevation: 178'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1980

0-10.5 ft. Undifferentiated
Quartz sand, fine- to coarse-grained, unconsolidated to poorly indurated,
nonclayey to clayey, trace heavy minerals. Clay, sandy, poor induration,
yellowish gray.

10.5-108.8 ft. Hawthorn Group

10. 5 64 ft.? Coosawhatchie Formation
Predominantly quartz sand with clay and limestone. Quartz sand, yellow-
ish gray, fine to coarse, poor induration, clayey to calcareous, phos-
phatic. Clay, light olive-gray, poor induration, sandy. Limestone, yellow-
ish gray, poor induration, sandy, clayey, phosphatic.

64 ?-98.5 ft. Marks Head Formation
Interbedded sand and clay, yellowish gray, sandy, clayey, phosphatic,
poor to good induration. Quartz sand, yellowish gray, clayey, phosphatic,
fine to coarse, poor to moderate induration. Clay, yellowish gray, sandy,
phosphatic, moderate induration.

98.5-108.8 ft. Penney Farms Formation
Predominantly sand and clay with dolomite and limestone. Quartz sand,
yellowish gray, clayey, dolomitic, phosphatic, very-fine- to medium-
grained, poor induration. Clay, yellowish gray to greenish gray, sandy,
phosphatic, dolomitic, moderate induration. Dolomite, yellowish gray to
olive-gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to
good induration.

108.8- 132 ft. Ocala Group

108.8- 132 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
poor induration.

BUREAU OF GEOLOGY

Accession No.: W-10473
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T2S R22E S15 1/4 dd
Surface Elevation: 167'
Geophysical Logs Available:

Core Name: Trail Ridge #3
Date Drilled: 4/70
County: Baker
Lat/Long: 30019'02"/82005'05"
Core TD: 288'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1979

0- 162 ft. Undifferentiated
Quartz sand with clayey and organic-rich matrix, heavy minerals com-
mon, fine- to coarse-grained, nonindurated to poor induration. Scattered
clay beds.

162 288 ft.

Hawthorn Group

162 180 ft. Charlton Member/Coosawhatchie Formation
Sandy limestone and calcareous, clayey, quartz sand. Common mollusk
molds.

180 288 ft. Coosawhatchie Formation Undifferentiated
Predominantly quartz sand with clay, limestone, and dolomite beds.
Quartz sand, light olive-gray, fine to coarse, poor induration, clayey,
dolomitic to calcareous. Dolomite, light olive-gray, poor induration,
sandy, clayey, phosphatic, varies to calcilutite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12361
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T4S R22E S12 1/4 bd
Surface Elevation: 191'
Geophysical Logs Available:

Core Name: National-Lead #2
Date Drilled: 10/74
County: Baker
Lat/Long: 30009'50"/82003'02"
Core TD: 127'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date:

0-127 ft. Undifferentiated Quartz Sand and Clay
Quartz sand, very fine to coarse, nonclayey to clayey, organic-rich near
surface, poorly indurated to nonindurated, white to gray with black
zones. Clay, sandy to nonsandy, silty, poorly to moderately indurated,
dark gray to black and olive-gray, wood fragments found in several
zones.

BUREAU OF GEOLOGY

Accession No.: W-13805
Owner: U.S. Forest Service
Driller: U.S. Geological Survey
T2S R19E S2 1/4 aaa
Surface Elevation: 132'
Geophysical Logs Available: G

Core Name: Osceola Nat. Forest #5
Date Drilled: 1978
County: Baker
Lat/Long: 30021'15"/82023'22"
Core TD: 272'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1980

0 35 ft. Undifferentiated
Quartz sand, fine- to medium-grained unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals.

35- 272 ft. Hawthorn Group Undifferentiated
Quartz sand, clay, and dolomite interbedded. Quartz sand, poor indura-
tion, clayey, dolomitic, phosphatic, yellowish gray to light gray. Clay,
sandy, dolomitic, phosphatic, poor to moderate induration, yellowish
gray to light olive-gray. Dolomite, sandy, clayey, phosphatic, poor to
good induration, light gray to olive-gray, fossil molds scattered through-
out.

272 ft.

Ocala Group

272 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-13812
Owner: U.S. Forest Service
Driller: U.S. Geological Survey
T2S R19E S30 1/4 cac
Surface Elevation: 141'
Geophysical Logs Available: G

Core Name: Osceola Nat. Forest #7
Date Drilled: 1978
County: Baker
Lat/Long: 30017'02"/82027'15"
Core TD: 182.6'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1980

0- 20 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals.

20- 182.6 ft. Hawthorn Group Undifferentiated
Quartz sand, clay, and dolomite interbedded. Quartz sand, poor indura-
tion, clayey, dolomitic, phosphatic, yellowish gray to light gray. Clay,
sandy, dolomitic, phosphatic, poor to moderate induration, yellowish
gray to light olive-gray. Dolomite, sandy, clayey, phosphatic, poor to
good induration, light gray to olive-gray, fossil molds scattered through-
out.

182.6 ft.

Ocala Group

182.6 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

BUREAU OF GEOLOGY

Accession No.: W-13965
Owner: International Paper
Company
Driller: Florida Geological Survey
T3S R12W S14 1/4 bc
Surface Elevation: 70'
Geophysical Logs Available: G

Core Name: Majette #1
Date Drilled: 10/78
County: Bay
Lat/Long: 30013'15"/85025'00"
Core TD: 450'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and Date: 1979
M. Clark

0-60 ft. Undifferentiated Quartz Sand
Unconsolidated, grayish orange to white to pale brown, clayey, quartz
sand.

60- 155 ft. Jackson Bluff Formation
Poorly indurated, light olive-gray, shelly (mollusks), clayey sand.

155-187 ft. Intracoastal Formation
Poorly to moderately indurated, yellowish gray, clayey, quartz sandy
biocalcarenite. Interval between 177 and 187 ft. is clay. Phosphate is
common throughout.

187-402 ft. B:uce Creek Limestone
Moderately indurated, yellowish gray to white, fossiliferous, phosphatic,
dolomitic calcarenite.

402 450 ft. Suwannee Limestone
Moderately indurated, yellow-gray to white, moldic, dolomitic
calcarenite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14101
Owner: St. Joe Paper Company
Driller: Florida Geological Survey
T1S R17W S34 1/4 dd
Surface Elevation: 50'
Geophysical Logs Available: G

Core Name: Otter Creek #1
Date Drilled: 10/78
County: Bay
Lat/Long: 30021'29"/85055'38"
Core TD: 280'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and
M. Clark

Date: 1979

0- 120 ft. Undifferentiated Quartz Sand
Unconsolidated, white, medium- to coarse-grained,
Wood particles are sporadically present.

120- 180 ft. Intracoastal Formation
Unconsolidated to poorly indurated, yellowish gray
quartz sandy, phosphatic biocalcarenite.

clayey, quartz sand.

to light gray, clayey,

180 280 ft. Bruce Creek Limestone
Moderately indurated, yellowish gray, slightly quartz sandy, fossiliferous
calcarenite. Interval from 175 to 280 ft. contains an olive-gray clay bed.

BUREAU OF GEOLOGY

Accession No.: W-14108
Owner: Hunt Oil/Prosper Energy
Company
Driller: Florida Geological Survey
TIS R15W S1 1/4 dda
Surface Elevation: 70'

Core Name: Warmouth Pond #1
Date Drilled: 12/78
County: Bay
Lat/Long: 30025'57"/85041'54"
Core TD: 502'

Geophysical Logs Available: G,T

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt

Date: 1978

0- 50 ft. Undifferentiated Quartz Sand
Unconsolidated, light gray, medium-grained, quartz sand.

50 70 ft. Jackson Bluff Formation
Poorly indurated, gray-orange to light gray, quartz sandy, shell beds.

70- 100 ft. Chipola Formation
Poorly indurated, light gray, quartz sandy, fossiliferous (mollusks) calcilu-
tite.

100- 130 ft. Bruce Creek Limestone
Moderately indurated, light gray, slightly quartz
calcarenite.

130-211 ft.
Moderately to
limestone.

211- 250 ft.
Well indurated,
dolomite.

Chattahoochee Formation
well indurated, very light orange,

sandy, fossiliferous

chalky, fossiliferous

Suwannee Limestone
recrystallized, light gray to very light orange, fossiliferous

250 339 ft. Marianna Limestone
Well indurated, very light gray, fossiliferous (large forams abundant),
chalky, dolomitic limestone.

339- 502 ft. Ocala Group Undifferentiated
Moderately to well indurated, very light orange to very light gray, fossilif-
erous, recrystallized and chalky calcarenite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12360 Core Name: N.L. #1
Owner: National Lead Industries Date Drilled: 8/74
Driller: Florida Geological Survey County: Bradford
T4S R22E S25 1/4 bd Lat/Long: 30007'13"/82003'04"
Surface Elevation: 200' Core TD: 493'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1983

0- 180 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poor indurated,
nonclayey to clayey, heavy minerals in lower portion.

180-492 ft. Hawthorn Group

180 226.5 ft. Charlton Member/Coosawhatchie Formation
Clayey sand and sandy clay with calcilutite matrix. Limestone and dolo-
mite, sandy, clayey with mollusc molds. Limestone and dolomite are
predominant.

226.5-303.5 ft. Coosawhatchie Formation Undifferentiated
Predominantly quartz sand with clay, limestone and dolomite beds.
Quartz sand, light olive-gray, fine to coarse, poor induration, clayey,
dolomitic to calcareous, phosphatic. Clay, light olive-gray, poor indura-
tion, sandy, dolomitic to calcareous. Dolomite, light olive-gray, poor indu-
ration, sandy, clayey, phosphatic, varies to calcilutite.

303.5 433 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, greenish gray, sandy, phosphatic, dolomitic, moderate indura-
tion.

433 492 ft. Penney Farms Formation
Sand and clay with dolomite. Quartz sand, light olive-gray to olive-gray,
clayey, dolomitic, phosphatic, very fine to coarse, poor induration. Clay,
olive-gray, sandy, phosphatic, dolomitic, moderate induration. Dolomite,
yellowish gray to olive-gray, sandy, phosphatic, clayey in zones, mollusk
molds, poor to good induration, varies to limestone.

492-493 ft. Ocala Group

492 493 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
moderate induration.

BUREAU OF GEOLOGY

Accession No.: W-13814 Core Name: Raiford #1
Owner: Florida Geological Survey Date Drilled: 1979
Driller: Florida Geological Survey County: Bradford
T5S R21E S26 1/4 cba Lat/Long: 30002'18"/82010'33"
Surface Elevation: 128' Core TD: 272'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0-35 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals. Clay present at base.

35-271.5 ft. Hawthorn Group

35- 118 ft. Coosawhatchie Formation
Predominantly quartz sand with clay and dolomite beds. Quartz sand,
light olive-gray, very fine to coarse, poor induration, clayey, dolomitic,
phosphatic. Clay, light olive-gray, poor induration, sandy, dolomitic to
calcareous. Dolomite, light olive-gray, poor induration, sandy, clayey,
phosphatic.

118 242 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, olive-gray, sandy, phosphatic, dolomitic, moderate induration.

242- 271.5 ft. Penney Farms Formation
Sand and clay with limestone. Quartz sand, light olive-gray to olive-gray,
clayey, dolomitic, phosphatic, very fine to coarse, poor induration. Clay,
light olive-gray to olive-gray, sandy, phosphatic, dolomitic, moderate
induration. Limestone, light gray, sandy, phosphatic, clayey in zones,
mollusk molds, poor to good induration.

271.5-272 ft. Ocala Group

271.5- 272 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14255
Owner: Mr. Mizelle
Driller: Florida Geological Survey
T7S R19E S1 1/4 da
Surface Elevation: 133'
Geophysical Logs Available: G

Core Name: Mizelle #1
Date Drilled: 1979
County: Bradford
Lat/Long: 29054'37"/82022'07"
Core TD: 140'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1979

0- 18 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to very clayey, trace heavy minerals.

18-111 ft.

Hawthorn Group

18-78.5 ft. Coosawhatchie Formation
Predominantly quartz sand with clay and limestone. Quartz sand, brown-
ish gray to yellowish gray, very fine to medium, poor induration, clayey,
phosphatic. Clay, yellowish gray, poor induration, sandy, dolomitic to
calcareous. Limestone, white, poor induration, sandy, clayey, phos-
phatic.

78.5 100 ft. Marks Head Formation
Quartz sand, yellowish gray, clayey to calcareous, phosphatic, fine to
coarse, poor to moderate induration.

100-111 ft. Penney Farms Formation
Sandstone and limestone; predominantly dolomite with sand and clay in
lower member. Quartz sandstone, yellowish gray, clayey, calcareous,
phosphatic, very fine to medium, poor induration. Limestone, very light
gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to good
induration.

111 120 ft. St. Marks Formation
Limestone, sandy, fossiliferous, wackestone, good induration, moderate
to high recrystallization.

120- 140 ft.

120- 140 ft.
Limestone, white
moderate to high

Ocala Group

Crystal River Formation
to light gray, grainstone to wackestone, fossiliferous,
recrystallization, moderate to good induration.

BUREAU OF GEOLOGY

Accession No.: W-14280
Owner: Mr. Varnes
Driller: Florida Geological Survey
T7S R21E S4 1/4 cb
Surface Elevation: 140'
Geophysical Logs Available: G

Core Name: Varnes #1
Date Drilled: 5/79
County: Bradford
Lat/Long: 29055'00"/82012'12"
Core TD: 175.5'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1979

0 28.5 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals.

28.5-175 ft.

Hawthorn Group

28.5 55 ft. Coosawhatchie Formation
Quartz sand and dolomite beds. Quartz sand, light olive-gray, very fine to
medium, poor induration, clayey, dolomitic, phosphatic. Dolomite, light
olive-gray to yellowish gray, poor induration, sandy, clayey, phosphatic.

55-135 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, olive-gray, sandy, phosphatic, dolomitic, moderation indura-
tion.

135-175 ft. Penney Farms Formation
Dolomite with sand. Dolomite, yellowish gray to olive-gray, sandy, phos-
phatic, clayey in zones, mollusk molds, poor to good induration. Sand is
as above.

175-175.5 ft.

Ocala Group

175- 175.5 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14283 Core Name: Wainwright #1
Owner: Mr. Wainwright Date Drilled: 1979
Driller: Florida Geological Survey County: Bradford
T6S R22E S24 1/4 dc Lat/Long: 29057'15"/82003'28"
Surface Elevation: 181' Core TD: 282'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0- 72 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals, fossiliferous at base.

72- 267 ft. Hawthorn Group

72 88 ft. Charlton Member of Coosawhatchie Formation
Clayey sand and sandy clay with calcilutite matrix. Limestone and dolo-
mite, sandy, clayey with mollusk molds. Limestone and dolomite are
predominant.

88- 137 ft. Coosawhatchie Formation Undifferentiated
Quartz sand, clay and dolomite beds. Quartz sand, yellowish gray, fine to
coarse, poor induration, clayey, dolomitic to calcareous, phosphatic.
Clay, yellowish gray, poor induration, sandy, dolomitic to calcareous.
Dolomite, light olive-gray to yellowish gray, poor induration, sandy,
clayey, phosphatic.

137 187 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray to olive-
gray, sandy, clayey, phosphatic, poor to good induration. Quartz sand,
yellowish gray, clayey, dolomitic, phosphatic, fine to medium, poor to.
moderate induration. Clay, light olive-gray, sandy, phosphatic, dolomitic,
moderate induration.

187 267 ft. Penney Farms Formation
Predominantly sand and clay with dolomite in upper member; predomi-
nantly dolomite with sand and clay in lower member. Quartz sand, light
olive-gray to yellowish gray, clayey, dolomitic, phosphatic, very fine to
coarse, poor induration. Clay, light olive-gray to olive-gray, sandy, phos-
phatic, dolomitic, moderate induration. Dolomite, yellowish gray to olive-
gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to good
induration.

22 BUREAU OF GEOLOGY

267 282 ft. Ocala Group

267-282 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
moderate induration.

INFORMATION CIRCULAR NO. 103

Accession No.: W-13076
Owner: Mr. Handy, River Ranch
Driller: Florida Geological Survey
T30S R35E S16 1/4 cbb
Surface Elevation: 26'
Geophysical Logs Available: G

Core Name: Ms. Caucus
Date Drilled: 1978
County: Brevard
Lat/Long: 27052'37"/80049'22"
Core TD: 242'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1983

0- 115 ft. Undifferentiated Sediments
Quartz sand, sandy clay, and shell beds. Abundant shell material through
much of section.

115-230 ft.

Hawthorn Group

115-227 ft. Peace River Formation
Predominantly clastic sediments; quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, yellowish
gray to olive-gray. Dolomite, sandy, clayey, phosphatic, poor to good
induration, occasionally fossils and/or fossil molds.

227 230 ft. Arcadia Formation
Dolomite, sandy, clayey, phosphatic, yellowish gray to light olive-gray,
moderate induration. Interbedded clastics.

230- 242 ft. Ocala Group Undifferentiated
Limestone, white to light gray, .packstone to wackestone, fossiliferous.

23

BUREAU OF GEOLOGY

Accession No.: W-13490
Owner: A. Duda & Sons
Driller: Florida Geological Survey
T25S R35E S35 1/4 cd
Surface Elevation: 15'
Geophysical Logs Available: G

Core Name: Brevard #1
Date Drilled: 1976
County: Brevard
Lat/Long: 28015'35"/80047'56"
Core TD: 230'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1982

0- 107 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals. Shell beds present.
Limestone, sandy, fossiliferous.

107- 126 ft.

Hawthorn Group

107- 126 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, grayish
brown to olive-gray. Clay, sandy, phosphatic, dolomitic, poor to moder-
ate induration, yellowish gray to olive-gray. Calcilutite, wackestone,
sandy, clayey, phosphatic, poor to good induration, variable to dolomite.
All sediments occasionally contain fossils and/or fossil molds.

126 212 ft. Ocala Group Undifferentiated
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
poor to good induration, low to high recrystallization.

212-230 ft. Avon Park Limestone
Limestone, packstone, white, fossiliferous, poor to good induration.

24

INFORMATION CIRCULAR NO. 103

Accession No.: W-13881 Core Name: Red Fern #1
Owner: Deseret Ranch Date Drilled: 1978
Driller: Florida Geological Survey County: Brevard
T27S R35E S18 1/4 db Lat/Long: 28008'10"/80050'52"
Surface Elevation: 21' Core TD: 322'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1982

0- 80 ft. Undifferentiated
Quartz sand, fine- to medium-grained unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals. Sandy, shell beds com-
mon. Clay, calcareous, sandy.

80- 185 ft. Hawthorn Group

80- 175 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, grayish
brown to olive-gray. Clay, sandy, phosphatic, dolomitic, poor to moder-
ate induration, yellowish gray to olive-gray. Dolomite, sandy, clayey,
phosphatic, poor to good induration, variable to limestone. All sediments
occasionally contain fossils and/or fossil molds.

175-185 ft. Arcadia Formation
Dolomite, sandy, clayey, phosphatic, yellowish gray to light olive-gray,
poor to good induration, fossil molds.

185-248 ft. Ocala Group Undifferentiated
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
moderate induration, medium to high recrystallization.

248 322 ft. Avon Park Limestone
Limestone, white to very light orange, packstone, fossiliferous, moder-
ate to good induration, moderate to high recrystallization, varies to dolo-
mite.

BUREAU OF GEOLOGY

Accession No.: W-13964
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T30S R35E S9 1/4 dab
Surface Elevation: 21'
Geophysical Logs Available: G

Core Name: B. D. #1
Date Drilled: 7/79
County: Brevard
Lat/Long: 27053'33"/80049'26"
Core TD: 181'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1982

0- 75 ft. Undifferentiated
Sand, fine- to coarse-grained, clayey to calcareous, unconsolidated to
poorly indurated, grayish brown to yellowish gray, fossils common. Clay,
calcareous, sandy, light olive-gray, fossils common. Limestone, fine-
grained, poor to moderate induration, sandy, clayey, fossils common.
Shell beds, sandy, clayey poorly indurated.

75-166.5 ft.

Hawthorn Group

75- 166.5 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, grayish
brown to olive-gray. Clay, sandy, phosphatic, dolomitic, poor to moder-
ate induration, yellowish gray to olive-gray. Dolomite, sandy, clayey,
phosphatic, poor to good induration, variable to limestone. All sediments
occasionally contain fossils and/or fossil molds. Often very phosphatic.

166.5- 181 ft. Ocala Group Undifferentiated
Limestone, packstone, white to light gray, fossiliferous, moderate indu-
ration.

INFORMATION CIRCULAR NO. 103

Accession No.: W-11270 Core Name: Ten Mile Creek #1
Owner: Florida Geological Survey Date Drilled: 3/72
Driller: Florida Geological Survey County: Calhoun
T1N R10W S13 1/4 ab Lat/Long: 30029'45"/85011'05"
Surface Elevation: 125' Core TD: 342'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and Date: 1980
M. Clark

0- 26.5 ft. Citronelle Formation
Unconsolidated, gray-brown to buff to orange-red, micaceous, clayey,
quartz sand and gravel.

26.5 44 ft. Undifferentiated Sandy Clay
Poorly consolidated, yellowish brown to olive-gray, quartz sandy clay,
similar to matrix of Jackson Bluff but lacking fossils.

44-50 ft. Jackson Bluff Formation
Poorly indurated, yellowish brown to very light gray, quartz sandy clay
studded with mollusks and foraminifera.

50- 100 ft. Chipola Formation
Poorly to moderately indurated, gray to olive, clayey, quartz sandy,
calcareous, mollusk- and foraminifera-shell marl. Fauna abundant and
prolific; towards base more lithified becoming limestone.

100 287 ft. Chattahoochee Formation
Moderately to well indurated, light gray, fine-grained, sucrosic, dolomitic
limestone. Zones contain quartz and phosphatic sand in a dolosilt matrix.
Clay beds are also present.

287 342 ft. Suwannee Limestone
Well indurated, light gray to yellowish brown dolomite and calcarenite.

BUREAU OF GEOLOGY

Accession No.: W-14125
Owner: St. Joe Paper Company
Driller: Florida Geological Survey
T3S R10W S19 1/4 bd
Surface Elevation: 67'
Geophysical Logs Available: G

Core Name: Bee Bay #1
Date Drilled: 12/78
County: Calhoun
Lat/Long: 30012'20"/85016'26"
Core TD: 492'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and Date: 1979
M. Clark

0 60 ft. Undifferentiated Quartz Sand
Unconsolidated, light brown to gray-orange, fine to coarse, quartz sand.

60- 110 ft. Jackson Bluff Formation
Poorly to moderately indurated, olive to yellow-gray, quartz sandy,
clayey, shell mart and limestone. Carbonate is dominant in the lower 20
ft.; clay is dominant in the upper 30 ft.

110- 140 ft. Chipola Formation
Moderately indurated, yellow-gray, fossiliferous, quartz sandy, clayey
limestone.

740- 184 ft.
Poorly indurated,
biocalcarenite.

Intracoastal Formation
yellow-gray, clayey, quartz

184- 421.5 ft. Bruce Creek Limestone
Moderately to well indurated, yellow-gray, moldic,
quartz sandy calcarenite.

sandy, phosphatic :

fossiliferous, slightly

421.5- 464 ft. Chattahoochee Formation
Moderately indurated, yellow-gray to light gray, slightly quartz sandy,
very finely sucrosic, dolomitic calcilutite.

464- 492 ft. Suwannee Limestone
Moderately to well indurated, yellow-gray, dolomitic calcarenite and cal-
cilutite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15502
Owner: A. L. Land
Driller: Law Engineering
T2N R7W S6 1/4 cac
Surface Elevation: 118'
Geophysical Logs Available: G,S,P

Core Name: Drill Hole #6
Date Drilled: 1/74
County: Calhoun
Lat/Long: 30035'44"/84058'44"
Core TD: 306'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and
R. Nelson

Date: 1983

0- 22.5 ft. Terrace Sand and Reworked Citronelle Formation
Unconsolidated to poorly consolidated, brown to red-tan to gray-white,
organic, silty, clayey, fine to coarse, quartz sand.

22.5 30.5 ft. Hawthorn Group Undifferentiated
Poorly consolidated, brown to buff-gray, silty, slight mottled, slightly
calcareous, sandy clay.

30.5-139 ft. Chattahoochee Formation
Moderately to well indurated, gray to white to buff, silty, dolomitic calci-
lutite, often chalky and containing clay stringers. Zones are vuggy and
fossiliferous.

139 306 ft. Suwannee Limestone
Well indurated, tan to brown to light gray, sucrosic, moldic, fossiliferous
dolomite. Zones are calcarenitic and highly recrystallized. Lower inter-
vals are mostly dolomitic, fossiliferous limestone.

BUREAU OF GEOLOGY

Accession No.: W-15506 Core Name: Drill Hole #10
Owner: Jack Van Lierop Date Drilled: 2/74
Driller: Law Engineering County: Calhoun
TIS R9W S2 1/4 aac Lat/Long: 30025'28"/85006'48"
Surface Elevation: 100' Core TD: 333'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt Date: 1983

0- 52 ft. Citronelle Formation
Unconsolidated to poorly consolidated, brown to red-orange to tan, silty,
clayey, fine to coarse, quartz sand; lower part of interval is sandy, plastic
clay.

52- 65.5 ft. Arenaceous Clay Bed
Poorly consolidated, dark green, silty, micaceous, quartz sandy clay.
Heavy minerals and phosphate present (?).

65.5-70 ft. Jackson Bluff Formation
Poorly consolidated, dark green, calcareous, abundantly fossiliferous,
quartz sandy clay.

70 99 ft. Chipola/Intracoastal Formations Undifferentiated
Poorly consolidated, greenish gray, calcareous, micaceous, phosphatic,
microfossiliferous, quartz sand.

99- 142 ft. Intracoastal Formation
Poorly to moderately indurated, light and dark gray, chalky, sandy, phos-
phatic, abundantly microfossiliferous, calcilutite and fine-grained
calcarenite.

142- 159 ft. Bruce Creek Limestone/St. Marks Formation Undif-
ferentiated
Moderately indurated, speckled, phosphatic, clayey, quartz sandy,
moldic, fossiliferous limestone. Fossils abundant including mollusks and
large forams.

159- 333 ft. Chattahoochee Formation
Well indurated, gray-white to tan to light gray, slightly clayey, dolomitic,
fossiliferous, moldic calcilutite. Intervals include greenish clay zones,
sucrosic dolomite and plastic blue-green clay.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15508
Owner: Donald Leonard
Driller: Hastings
T2N R8W S15 1/4 bab
Surface Elevation: 130'
Geophysical Logs Available: G,S,P

Core Name: Drill Hole #12
Date Drilled: 3/74
County: Calhoun
Lat/Long: 30034'31"/85001'22"
Core TD: 553'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt

0 34.5 ft. Citron'
Poorly consolidated, light b
micaceous, fine to coarse
organic flecks.

Date: 1983

elle Formation and Reworked Sand
rown to red to yellow, silty, mottled, clayey,
,, quartz sand. Some quartz pebbles, rare

34.5-192 ft. Chattahoochee Formation
Poorly to well indurated, light gray, chalky, sucrosic, dolomitic, slightly
fossiliferous limestone. Zones are blue-green, clayey silt; 150- 153 ft. is
dark green, waxy clay.

192-421 ft. Suwannee Limestone
Well indurated, tan to brown, silty, sucrosic, recrystallized dolomite and
dolomitic limestone. Fossils as molds and casts, highly solutioned.

421 553 ft. Marianna Limestone
Moderately indurated, light gray to tan, chalky, calcilutitic, recrystallized,
massive, fossiliferous limestone. Large forams in calcilutite matrix.

BUREAU OF GEOLOGY

Accession No.: W-15511
Owner: Quina Stone
Driller: Hastings
T2N R9W S23 1/4 dda
Surface Elevation: 202'
Geophysical Logs Available:

Core Name: Drill Hole #15
Date Drilled: 4/74
County: Calhoun
Lat/Long: 30033'28"/85006'26"
Core TD: 344'

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt

Date: 1983

0-26 ft. Citronelle Formation
Poorly consolidated, brown to red-orange to yellow-tan, silty, clayey,
micaceous, quartz sand and sandy clay.

26- 125.5 ft. Hawthorn Group Undifferentiated
Moderately indurated, green-gray to light gray to blue-green, arena-
ceous, silty clay; calcareous, fossiliferous, clayey silt; and sandy calcilu-
tite. Lower zones contain green palygorskite-type clay. 95 to 112 ft. is
calcareous, shelly sand, not unlike the Chipola Formation.

125.5- 254.5 ft. Chattahoochee Formation
Moderately indurated, light and dark gray to white, fossiliferous, sucro-
sic, dolomitic calcilutite. Intervals contain blue-green waxy clay, brec-
ciated zones and numerous microfossils.

254.5-344 ft. Suwannee Limestone
Well indurated, brown to gray-brown, vuggy, sucrosic, fossiliferous dolo-
mite and dolomitic calcarenite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15513 Core Name: Drill Hole #17
Owner: Julian Parrish Date Drilled: 5/74
Driller: Hastings County: Calhoun
T1N R8W S6 1/4 abd Lat/Long: 30030'40"/85004'06"
Surface Elevation: 120' Core TD: 284.5'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: W. Schmidt and Date: 1983
R. Nelson

0-55 ft. Citronelle Formation
Unconsolidated to poorly consolidated, brown to yellow-tan to orange,
silty, clayey, quartz sand and some gravel. Sandy, mottled clay present
with mica.

55-75 ft. Arenaceous Clay Beds
Poorly consolidated, gray-green, silty, sandy, slight calcareous, mica-
ceous and phosphatic clay.

75-101 ft. Chipola Formation
Poorly to moderately consolidated, gray-green, micaceous, calcareous,
clayey, fossiliferous sand. Fauna is dominated by gastropods.

101 104 ft. Intracoastal Formation
Moderately consolidated, phosphatic, sandy, foram-rich biocalcarenite.

104- 265 ft. Chattahoochee Formation
Well indurated, gray to tan with greenish gray layers, dolomitic, fossilif-
erous, vuggy, sucrosic calcilutite. Intervals contain waxy, massive, blue-
green clay; others are so abundantly fossiliferous they could be called a
recrystallized coquina.

265-284.5 ft. Suwannee Limestone
Well indurated, tan to brown to gray, sucrosic, vuggy, fossiliferous dolo-
mite.

BUREAU OF GEOLOGY

Accession No.: W-10748
Owner: Babcock Ranch
Driller: Florida Geological Survey
T4tS R26E S35 1/4 cba
Surface Elevation: 36'
Geophysical Logs Available:

Core Name: Clay Prospect #1
Date Drilled: 1971
County: Charlotte
Lat/Long: 26052'05"/81041'21"
Core TD: 88'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0 38 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, shell and clay, coarse-grained, variably clayey, marly, some
shell beds, lithified, recrystallized, predominantly non- to poorly indu-
rated.

38 88 ft.

Hawthorn Group

38 88 ft. Peace River Formation
Predominantly clay, light gray, greenish gray, plastic to friable, variably
calcareous, some shell, slightly to very phosphatic, mollusks, foramini-
fera and diatoms present; 85-88 ft. phosphatic to very phosphatic,
dolomitic limestone.

34

INFORMATION CIRCULAR NO. 103

Accession No.: W-10749
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S35 1/4 caa
Surface Elevation: 35'
Geophysical Logs Available:

Core Name: Clay Prospect #2
Date Drilled: 1971
County: Charlotte
Lat/Long: 26052'05"/81041'37"
Core TD: 95'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0 40.5 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, shell beds, light brown, gray, tan, very-coarse- to fine-
grained, minor clay, some shelly material, recrystallized, sucrosic, some
shell beds, moderately to well indurated, remainder nonindurated to
moderately indurated.

40.5-95 ft.

Hawthorn Group

40.5-95 ft. Peace River Formation
Predominantly clay, medium olive-green, dark gray, variably phosphatic,
calcareous, plastic to friable, minor quartz sand in some intervals;
92 95 ft. phosphatic, dolomitic, well indurated limestone.

BUREAU OF GEOLOGY

Accession No.: W-10750
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S35 1/4 aab
Surface Elevation: 38'
Geophysical Logs Available:

Core Name: Clay Prospect #3
Date Drilled: 1971
County: Charlotte
Lat/Long: 26051'55"/81041'05"
Core TD: 85.5'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 5/18/84
B.J. Timmons

0- 36.5 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, white to tan, intergranular porosity, medium- to coarse-
grained, variably shelly, some lithified coquina, some moldic, recrystal-
lized, limestone fragments, trace phosphate sand, marly toward base,
poorly to nonindurated.

36.5-85.5 ft.

Hawthorn Group

36.5 85.5 ft. Peace River Formation
Clay, olive-green, gray, plastic, variably calcareous, some shell in upper
part, variably phosphatic, abundant foraminifera and diatoms;
83.5-85.5 ft. dolomitic, phosphatic, fossiliferous limestone, highly
phosphatized at upper surface.

36

INFORMATION CIRCULAR NO. 103

Accession No.: W-10751
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S36 1/4 caa
Surface Elevation: 38'
Geophysical Logs Available:

Core Name: Clay Prospect #4
Date Drilled: 1971
County: Charlotte
Lat/Long: 26052'07"/81040'40"
Core TD: 84'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-38 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, light gray, tan, light reddish tan, organic in upper 5 ft.,
medium- to coarse-grained, trace phosphate and carbonate grains,
slightly clayey, slightly shelly below 10 ft. Dolomitic coquina and dolo-
mite below 26 ft., poor to moderate induration, dolomite cement, slightly
quartz sandy in upper part, moldic porosity, 1- 2 percent phosphate
sand at base.

38 84 ft.

Hawthorn Group

38 84 ft. Peace River Formation
Clay, light to dark yellowish and greenish gray, light to dark olive-green,
variably calcareous, slightly shelly in upper part, foraminifera intermit-
tently common throughout, plastic to crumbly, very slightly to intermit-
tently very phosphatic; 81.5- 83.5 ft. dolomite, phosphatized at upper
surface, well-indurated at surface, moderately below, moldic porosity.

BUREAU OF GEOLOGY

Accession No.: W-10752
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S25 1/4 aac
Surface Elevation: 41'
Geophysical Logs Available:

Core Name: Clay Prospect #5
Date Drilled: 1971
County: Charlotte
Lat/Long: 26052'45"/81040'15"
Core TD: 77'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-27 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, tan to medium gray, intergranular porosity, predominantly
unconsolidated, iron-stained in upper part, medium- to fine-grained,
clayey, trace phosphate, trace heavy minerals, abundant shell material,
some present as sparry calcite-cemented coquina.

27 77 ft.

Hawthorn Group

27-77 ft. Peace River Formation
Clay, greenish gray, light olive, plastic to crumbly, calcareous to noncal-
careous, slightly phosphatic to very phosphatic, part finely laminated;
76-77 ft., dolomite, gray to tan, very fossiliferous, phosphatized at
upper surface, grades downward to slightly phosphatic.

INFORMATION CIRCULAR NO. 103

Accession No.: W-10753
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S24 1/4 ddd
Surface Elevation: 48'
Geophysical Logs Available:

Core Name: Clay Prospect #6
Date Drilled: 1971
County: Charlotte
Lat/Long: 26053'28"/81040'26"
Core TD: 74'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-31 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, tan, very light purple, medium- to coarse-grained, unconsol-
idated, intergranular porosity, slightly iron-stained near surface, clayey,
trace phosphate. Lower half predominantly unlithified coquina, marly
with some clay and fine quartz sand.

31 -74 ft.

Hawthorn Group

31 -74 ft. Peace River Formation
Predominantly clay, light gray, dark greenish gray, plastic, very slightly
calcareous, slightly phosphatic; 62.5-74 ft. dolomite and limestone,
light gray to chalky white, intergranular and moldic porosity, poor to
good induration, dolomite and micrite cement, some lenses pasty, phos-
phatic.

BUREAU OF GEOLOGY

Accession No.: W-10754
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S24 1/4 bbb
Surface Elevation: 55'
Geophysical Logs Available:

Core Name: Clay Prospect #7
Date Drilled: 1971
County: Charlotte
Lat/Long: 26053'28"/81034154"
Core TD: 65.5'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-31 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, light tan, light gray to reddish brown, medium- to coarse-
grained, trace phosphate. Predominantly unconsolidated coquina below
15 ft.; thin shell and light green plastic clay 25-31 ft.

31 -65.5 ft.

Hawthorn Group

31 65.5 ft. Peace River Formation
Clay, medium gray, dark greenish gray, plastic, phosphatic, most quite
pure, foraminifera and diatoms. 62.5-65.5 ft., dolomite: black, light
gray to off-white, phosphatized at upper surface, well cemented to
pasty, moldic porosity.

40

INFORMATION CIRCULAR NO. 103

Accession No.: W-10755
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R27E S19 1/4 bbb
Surface Elevation: 58'
Geophysical Logs Available:

Described by:

Core Name: Clay Prospect #8
Date Drilled: 1971
County: Charlotte
Lat/Long: 26053'35"/81038'45"
Core TD: 67'

STRATIGRAPHIC DESCRIPTION

K. Campbell and Date: 1984
B.J. Timmons

0-30 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, fine- to coarse-grained, organic in upper part, slightly
clayey, 10-17 ft., shelly. Below 17 ft. predominantly unlithified to
poorly indurated coquina, with minor quartz sand, marly toward base.

30- 67 ft.

Hawthorn Group

30-67 ft. Peace River Formation
Clay, light to dark gray, greenish gray, some shell fragments in upper
portion, calcareous to noncalcareous, plastic to blocky, slightly to highly
phosphatic, some thin sand lenses, foraminifera. 65-67 ft., dolomite,
conglomerate, medium to dark gray with white inclusions, phosphatic.

BUREAU OF GEOLOGY

Accession No.: W-10756
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S 1/4 intersection
13-14-23-24
Surface Elevation: 52'
Geophysical Logs Available:

Core Name: Clay Prospect #9
Date Drilled: 1971
County: Charlotte
Lat/Long: 26054'03"/80040'45"
Core TD: 76'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-36 ft. Undifferentiated Surficial Sand and Shell
(cuttings only) Quartz sand, tan, light gray, medium- to coarse-grained,
slightly organic near surface, slightly shelly below 14 ft. Below 15 ft.
predominantly unconsolidated coquina, minor sand, sand at 25-29 ft.,
slightly clayey and marly below 29 ft.

36- 76 ft.

Hawthorn Group

36 76 ft. Peace River Formation
Clay, light yellowish gray, medium to dark greenish gray, calcareous,
plastic to crumbly, very slightly phosphatic to phosphatic, intermittent
very phosphatic zones, forams intermittently common; 71 -76 ft., dolo-
mite, phosphatized at upper surface, grades downward to dolomitic lime-
stone, coquina, moderately to well indurated, moldic porosity, essentially
no phosphate below 71.5 ft.

42

INFORMATION CIRCULAR NO. 103

Accession No.: W-10757
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S 1/4 Intersection
14-15-22-23
Surface Elevation: 48'
Geophysical Logs Available:

Core Name: Clay Prospect #10
Date Drilled: 1971
County: Charlotte
Lat/Long: 26054'03"/81041'42"
Core TD: 61.5'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-35.5 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, medium- to fine- to very-fine-grained, very light gray, iron-
stained, slightly shelly, below 20 ft. primarily shell, unconsolidated to
poorly indurated, some quartz sand, slightly clayey toward base.

35.5-61.5 ft.

Hawthorn Group

35.5-61.5 ft. Peace River Formation
Clay, dark to light greenish gray (lighter with depth), plastic, very slightly
calcareous, slightly phosphatic, thin beds, highly phosphatic. 60-61.5
ft., dolomitic limestone, light gray, very-fine-grained, well indurated, little
apparent porosity.

43

BUREAU OF GEOLOGY

Accession No.: W-10758
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S 1/4 Intersection
15-16-21-22
Surface Elevation: 48'
Geophysical Logs Available:

Core Name: Clay Prospect #11
Date Drilled: 1971
County: Charlotte
Lat/Long: 26054'04"/81042'50"
Core TD: 73'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-31 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, light gray, tan, very-fine- to coarse-grained, slightly organic
near surface, shelly 15-20 ft.; below 20 ft. shell with minor quartz
sand, unlithified.

31 -73 ft.

Hawthorn Group

31 -73 ft. Peace River Formation
Clay, light gray to dark gray, medium to dark greenish gray, calcareous to
slightly calcareous, some shell in uppermost part, phosphatic to very
phosphatic, plastic to crumbly; 72 73 ft. dolomitic limestone conglom-
erate, highly phosphatic, pasty, clay matrix.

44

INFORMATION CIRCULAR NO. 103

Accession No.: W-10759
Owner: Babcock Ranch
Driller: Florida Geological Survey
T42S R26E S6 1/4 aaa
Surface Elevation: 34'
Geophysical Logs Available:

Core Name: Clay Prospect #12
Date Drilled: 1971
County: Charlotte
Lat/Long: 26051'05"/81044'55"
Core TD: 41'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-41 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, light tan, medium gray, fine- to medium-grained, slightly
organic, iron-stained near surface, variably clayey and shelly. Limestone,
brown, medium gray, poorly to well-indurated, calcite cement, moldic
porosity, variably shelly, quartz sandy, recrystallized, dolomitic toward
base.

BUREAU OF GEOLOGY

Accession No.: W-10760
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S31 1/4 ddc
Surface Elevation: 35'
Geophysical Logs Available:

Core Name: Clay Prospect #13
Date Drilled: 1971
County: Charlotte
Lat/Long: 26051'27"/81045'12"
Core TD: 94'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-31 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, off-white, tan, bright ocher, fine- to coarse-grained, slightly
organic near surface, shelly below 14 ft.; 20- 30 ft. coquina, indurated,
dotomitized.

31 -94 ft.

Hawthorn Group

91 -94 ft. Peace River Formation
Clay, light to dark gray, medium to dark greenish gray, variably calcare-
ous, shelly in upper part, plastic to crumbly, some iron sulfide above 54
ft., some selenite crystals (when samples are fresh), slightly to highly
phosphatic, sandy clay to clayey sand below 86.5 ft.

INFORMATION CIRCULAR NO. 103

Accession No.: W-10761 Core Name: Babcock Deep Core
Owner: Babcock Ranch Test
Driller: Florida Geological Survey Date Drilled: 9/70
T41S R26E S33 1/4 ddd County: Charlotte
Surface Elevation: 29' Lat/Long: 26051'29"/81042'43"
Core TD: 450'
Geophysical Logs Available: G,C,S,P

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
B.J. Timmons

0-98 ft. Undifferentiated Surficial Sand and Shell
Predominantly quartz sand and shell beds, dark brown, yellowish orange,
gray, intergranular and moldic porosity, fine- to coarse-grained sand, vari-
ably clayey, essentially clean sand and shell from 14- 62 ft.; trace phos-
phate sand, poorly to nonindurated; 85-98 ft., silty, sandy, moldic,
dolomitic limestone, trace phosphate.

98 450 ft. Hawthorn Group

98 295 ft. Peace River Formation
Primarily clay, approximately 30 percent limestone, minor sand. Clay,
light greenish gray,. yellowish gray, olive, calcareous, some shell frag-
ments in upper part, plastic to hard, variably quartz sandy and silty,
variably phosphatic to very phosphatic, some thin carbonate stringers.
Limestone, sandy, silty, clayey, dolomitic variably phosphatic, intergran-
ular and moldic porosity, calcilutite, dolomite, and clay cement, poor to
good induration.

295 450 ft. Arcadia Formation
Predominantly limestone and dolomite, some thin clay and sand beds,
gray, yellowish gray, greenish gray, intergranular and moldic porosity,
pasty, slightly to very phosphatic, quartz sandy, silty, variably clayey,
some mollusc shells, mollusc molds, some foraminifera, some thin silt
and sand stringers.

BUREAU OF GEOLOGY

Accession No.: W-11489
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S12 1/4 aab
Surface Elevation: 60'
Geophysical Logs Available:

Core Name: Babcock "A"
Date Drilled: 9/72
County: Charlotte
Lat/Long: 26055'45"/81040'12"
Core TD: 71'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell

0-30 ft.

30-71 ft.

Date: 1984

No Samples

Hawthorn Group

30-71 ft. Peace River Formation
Clay, light tan, light to medium greenish gray, dark gray, yellowish gray,
quartz sandy, intermittently phosphatic to very phosphatic, calcareous,
slightly shelly 30- 32 ft., abundant foraminifera. Below 60 ft., dolomite
coquina grading downward to moldic dolomite, moderate brown, dark
gray to light orange, uppermost portion phosphatized, moderately to well
indurated, dolomite and calcite cement, intergranular and moldic poros-
ity, dolomite crystal size very fine to microcrystalline.

INFORMATION CIRCULAR NO. 103

Accession No.: W-11490
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S11 1/4 bab
Surface Elevation: 57'
Geophysical Logs Available:

Core Name: Babcock "B"
Date Drilled: 9/72
County: Charlotte
Lat/Long: 26055'50"/81 40'45"
Core TD: 69'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell

0-30 ft.

30 69 ft.

Date: 1984

No Samples

Hawthorn Group

30 69 ft. Peace River Formation
Clay, yellowish gray, gray-brown, olive to dark olive-green, moderate to
poor induration, clayey cement, plastic to crumbly, upper part very
calcareous, pasty, slightly shelly, phosphatic, abundant foraminifera.
Below 64 ft., dolomite to dolomitic limestone, grayish black to very light
orange, uppermost 6-8 inches phosphatized. Coquina, well indurated,
intergranular to moldic porosity.

BUREAU OF GEOLOGY

Accession No.: W-11491
Owner: Babcock Ranch
Driller: Florida Geological Survey
T41S R26E S9 1/4 bab
Surface Elevation: 47'
Geophysical Logs Available:

Core Name: Babcock "C"
Date Drilled: 9/72
County: Charlotte
Lat/Long: 26055'49"/81043'00"
Core TD: 90'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell Date: 1984

0- 48 ft. No Samples

48 90 ft. Peace River Formation
Clay, light to medium brown, light tan, very light olive-green, upper part
calcareous to very calcareous, variably quartz sandy, phosphatic to very
phosphatic, slightly shelly at top, abundant foraminifera. 87.5 90 ft.,
phosphatic dolomite to dolomitic limestone, well indurated, grayish black
to very light gray, very fossiliferous, moldic porosity.

50

INFORMATION CIRCULAR NO. 103

Accession No.: W-11669 Core Name: Farabee #1
Owner: Florida Geological Survey Date Drilled:
Driller: Florida Geological Survey County: Charlotte
T40S R26E S3 1/4 bdcc Lat/Long: 27001'10"/81 42'30"
Surface Elevation: 48' Core TD: 540'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell Date: 1984

0-36 ft. Undifferentiated Surficial Sand and Shell
Quartz sand, gray, brownish gray, ocher, poor induration, clay and iron
cement, intergranular porosity, fine-grained, shelly to very shelly below
10.5 ft. (molluscs, gastropods, oysters), clayey, trace phosphate sand at
base. 30 percent dark gray, well indurated, quartz sandy, dolomite peb-
bles from 28 36 ft.

36 540 ft. Hawthorn Group

36 205 ft. Peace River Formation
Primarily clay, silt and sandy dolomite. Clay, olive-green, light tan, gray,
variably phosphatic, slightly shelly, dolomitic, micritic, variably quartz
sandy and silty. Thick carbonate section at 66-128 ft., primarily dolo-
mite and very dolomitic clay, upper surface phosphatized, dark gray,
black, creamy white, very light orange, moderately to well indurated,
dolomite, calcilutite, and clay cement, often dolomite coquina, moldic
porosity, variably phosphatic, silty and clayey. Gradational lower con-
tact.

205 540 ft. Arcadia Formation Undifferentiated
Primarily dolomite and limestone, light to medium gray and very light
orange, intergranular and moldic porosity, poorly to well indurated, clay,
dolomite, calcilutite, and sparry calcite cement, variably phosphatic to
very phosphatic, variably quartz sandy, mollusc and gastropod molds,
foraminifera, very recrystallized below 510 ft.

BUREAU OF GEOLOGY

Accession No.: W-11907 Core Name: Camp Miles #1
Owner: Florida Geological Survey Date Drilled: 5/73
Driller: Florida Geological Survey County: Charlotte
T41S R25E S5 1/4 center Lat/Long: 26056'19"/81050'00"
Surface Elevation: 39' Core TD: 621'
Geophysical Logs Available: G,P,S,T

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1983

O 32.5 ft. Undifferentiated Sediments
Quartz sand, very-fine- to medium-grained, becomes clayey with depth,
unconsolidated to poor induration, grayish brown. Limestone and shell
beds, sandy, clayey, poor to moderate induration, yellowish to gray to
white, fossiliferous.

32.5- 621 ft. Hawthorn Group

32.5- 186 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, yellowish
gray to olive-gray. Clay, yellowish gray to olive-gray. Dolomite, sandy,
clayey, phosphatic, poor to good induration, variable to limestone. All
sediments occasionally contain fossils and/or fossil molds.

186 472 ft. Upper Member/Arcadia Formation
Predominantly carbonate, variable from dolomite to limestone, sandy,
clayey, phosphatic, yellowish gray to light olive-gray, poor to good indu-
ration. Quartz sand, fine- to medium-grained, calcareous to dolomitic,
clayey, phosphatic, poor to moderate induration, light gray to light olive-
gray. Clay, sandy, phosphatic, dolomitic to calcareous, poor to moderate
induration, yellowish gray to light olive-gray.

472- 621 ft. Nocatee Member/Arcadia Formation
Predominantly quartz sand and clay. Quartz sand, clayey, phosphatic,
dolomitic to calcareous, fine- to medium-grained, poor induration, yel-
lowish gray to light olive-gray. Clay, sandy, phosphatic, dolomitic to
calcareous, poor to moderate induration, yellowish gray to light olive-
gray. Limestone and dolomite as in upper member.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15289 Core Name: Romp TR 1-2
Owner: SWFWMD Date Drilled: 1/83
Driller: SWFWMD County: Charlotte
T42S R23E S11 1/4 dba Lat/Long: 26050'26"/81 58'54"
Surface Elevation: 26' Core TD: 695'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1983

0-42 ft. No Samples

42 695 ft. Hawthorn Group

42 169 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, fine- to medium-grained,
clayey, dolomitic, phosphatic, poor to moderate induration, grayish
brown to olive-gray. Poor samples, pick from log by G. Henderson.

169-639 ft. Upper Member/Arcadia Formation
Predominantly carbonate, variable from dolomite to limestone, sandy,
clayey, phosphatic, yellowish gray to light olive-gray, poor to good indu-
ration. Quartz sand, fine- to medium-grained, calcareous to dolomitic,
clayey, phosphatic, poor to moderate induration, light gray to light olive-
gray. Clay, sandy, phosphatic, dolomitic to calcareous, poor to moderate
induration, yellowish gray to light olive-gray.

639 695 ft. Nocatee Member/Arcadia Formation
Predominantly quartz sand and clay. Quartz sand, clayey, phosphatic,
dolomitic to calcareous, fine- to medium-grained, poor induration, yel-
lowish gray to light olive-gray. Clay, sandy, phosphatic, dolomitic to
calcareous, poor to moderate induration, yellowish gray to light olive-
gray. Limestone as in upper member.

BUREAU OF GEOLOGY

Accession No.: W-15332
Owner: SWFWMD/lndian Village
Driller: SWFWMD
T41S R21E S5 1/4 ba
Surface Elevation: 10'
Geophysical Logs Available:

Core Name: Romp 3-1
Date Drilled:
County: Charlotte
Lat/Long: 26056'15"/82013'50"
Core TD: 603.5'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell

0- 25.5 ft.

25.5- 603.5 ft.

Date: 1984

No Samples

Hawthorn Group

25.5-603.5 ft. Arcadia Formation
Primarily dolomite, cream, very light gray, gray, poorly to well indurated,
dolomite, micrite, and clay cement, intergranular and moldic porosity,
predominantly noncrystalline, variably quartz and phosphate sandy to
very sandy; 25.5-46.1 ft. intermittently variable to quartz and phos-
phate sandstone with dolomite cement, possible Peace River Formation,
Tampa Member at 251 ft.: limestone white to cream, very slightly phos-
phate sandy, quartz sandy to very sandy, intergranular and mold poros-
ity, calcilutitic. Tampa and Arcadia lithologies interbedded to 403 ft.
Below 403 ft., becomes more clayey (calcareous) more quartz sandy,
poorer average induration.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15333 Core Name: Romp TR 2-1
Owner: SWFWMD Date Drilled:
Driller: County: Charlotte
T40S R22E S32 1/4 b Lat/Long: 26057'30"/82007'30"
Surface Elevation: 2' Core TD: 689'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell Date: 1984

0-97.5 ft. No Samples

97.5- 666 ft. Hawthorn Group

97.5-134 ft. Peace River Formation
Dolomite, grayish-brown, light gray, very light orange, poor to moderate
induration, intergranular porosity, very-fine-grained, sucrosic, phosphate
sandy, quartz sandy to very sandy, transitional to less phosphatic, more
clayey, poorly indurated dolosilt, very slightly quartz sandy.

134-666 ft. Arcadia Formation
134-279 ft., predominantly dolomite, very light gray, gray, creamy
white and pale brown, moderately to well indurated, dolomite and calci-
lutite cement, some sparry calcite cement, intergranular and moldic
porosity, primarily silt size, slightly to very phosphatic, quartz sandy to
very sandy, some beds quartz and phosphate sand with dolomite and
clay cement, mollusc molds, Bryozoa molds. 279 ft., Tampa Member
top. Tampa and upper Arcadia lithologies alternate to 391 ft. Limestone,
creamy white, moderate to well indurated, calcilutite cement, slightly
phosphatic, slightly to very quartz sandy, intergranular and mold poros-
ity, calcilutite, some sparry calcite, mollusc, gastropod, and foraminifera
molds, parts bioturbated. Above lithology alternates with light gray, light
brownish gray dolomite, variably quartz and phosphate sandy, some
sand beds. 397-666 ft., primarily dolomite, poor to well indurated,
dolomite and clay cement, cryptocrystalline to very-fine-grained, variable
alteration, slightly to very quartz and phosphate sandy, some greenish
gray clay beds and poorly indurated dolosilt, and clay beds.

666 689 ft. Suwannee Limestone
Limestone, creamy white, very slightly yellowish-gray, moderately to
well indurated, intergranular, intragranular, and moldic porosity, calcilu-
tite cement, slightly quartz sandy at top, granular, grain size very fine to
coarse, allochems high, grain types skeletal biogenic, crystal, some calci-
lutite, some portions recrystallized.

BUREAU OF GEOLOGY

Accession No.: W-12362
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T19S R17E S30 1/4 center
Surface Elevation: 2'
Geophysical Logs Available:

Core Name: Homosassa Springs #1
Date Drilled: 11/74
County: Citrus
Lat/Long: 28047'50"/82037'30"
Core TD: 449'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell

0-2.5 ft.

Date: 1984

No Samples

2.5- 68 ft. Lower Ocala Group Undifferentiated
Limestone, white, cream, pinkish brown, moderately yellowish brown,
intergranular, intragranular, and moldic porosity, moderately to well indu-
rated, calcite and dolomite cement, calcarenite, biogenic, foraminifera,
mollusc, and gastropod, fragments and echinoid fragments, bryozoans,
some dwarfed Lepidocylina sp. in upper part, also Gypsina globula, lower
part extensively dolomitized, basal pick questionable.

68- 449 ft. Avon Park Limestone
Dolomite variable to limestone, white, cream, light to dark gray, light to
dark brown, intergranular and moldic porosity, uppermost part exten-
sively dolomitized, pick uncertain, variable organic-rich layers, granular
with calcilutite matrix, calcilutitic to recrystallized, dolomite powdery to
sucrosic to densely noncrystalline, abundant foraminiferal tests, mollusc
and gastropod molds, echinoid fragments.

INFORMATION CIRCULAR NO. 103

Accession No.: W-13863 Core Name: Romp 114
Owner: SWFWMD Date Drilled: 1/78
Driller: SWFWMD County: Citrus
T18S R17E S23 1/4 cca Lat/Long: 29053'55"/82034'O0"
Surface Elevation: 8' Core TD: 307'
Geophysical Logs Available: C,G,P,R,S,T

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell Date: 1984

0-29.5 ft. No Samples

29.5-88 ft. Lower Ocala Group Undifferentiated
Dolomite variable to limestone, white, cream, light gray, light to medium
yellowish brown, well indurated, calcite and dolomite cement, intergran-
ular, intragranular and moldic porosity. Dolomite, microcrystalline to
very-fine-grained, micromoldic, sucrosic. Limestone, foraminiferal
coquina, sparry calcite cement, fine- to coarse-grained.

88 307 ft. Avon Park Limestone
Limestone and dolomite, white to cream, yellowish gray, medium brown,
sparry calcite, dolomite and calcilutite cement, intergranular and moldic
porosity, calcilutitic, poorly to well indurated, variably recrystallized.
Dolomite, powdery to sucrosic, some thinly bedded organic-rich zones.

BUREAU OF GEOLOGY

Accession No.: W-14671
Owner: SWFWMD
Driller: SWFWMD
T19S R17E S4 1/4 bac
Surface Elevation: 5'
Geophysical Logs Available: G,P,S,

Described by:

Core Name: Romp TR 21-2
Date Drilled: 1/79
County: Citrus
Lat/Long: 28051'12"/82035'28"
Core TD: 200'

STRATIGRAPHIC DESCRIPTION

K. Campbell and Date: 1984
G. Strasser
(SWFWMD)

0- 10 ft. No Samples
Surficial sands according to SWFWMD log.

10- 86 ft. Lower Ocala Group Undifferentiated
Limestone, variable to dolomite, white, cream, to light brown, intergran-
ular, intragranular, and moldic porosity, moderately to well indurated,
sparry calcite to dolomite cement, calcarenite, medium- to fine-grained,
foraminiferal coquina, becomes more highly recrystallized towards base,
volume of cement increases (porosity decreases) with depth, molluscs,
gastropods, foraminifera, echinoids and algal balls.

86- 200 ft. Avon Park Limestone
Limestone, variable to dolomite, white to cream, light gray to light
brown, intergranular and moldic porosity, poorly to well indurated, dolo-
mite and calcilutite cement, some sparry calcite cement, cryptocrystal-
line to fine-grained, calcilutitic matrix. Limestone, calcilutitic to recrystal-
lized, dolomite often powdery to sucrosic, foraminifera-rich, organic
flecks.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14885 Core Name: Romp TR 21-3
Owner: SWFWMD Date Drilled: 4/81
Driller: SWFWMD County: Citrus
T18S R17E S34 1/4 bab Lat/Long: 28052'30"/82034'19"
Surface Elevation: 10' Core TD: 370'
Geophysical Logs Available: C,G,R,T,P,S

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
SWFWMD

0-32 ft. No Samples
Sand according to SWFWMD log.

32-97 ft. Lower Ocala Group Undifferentiated
Limestone, white, cream, yellowish brown, moderately to well indu-
rated, sparry calcite cement, intergranular, intragranular and moldic
porosity, predominantly fine- to medium-grained, foraminifera
calcarenite, variably recrystallized to extremely recrystallized, increasing
with depth, mostly micromoldic porosity above 60 ft. Foraminifera, mol-
luscs, gastropods and echinoids.

97- 370 ft. Avon Park Limestone
Limestone, variable to dolomite, white, creamy, light gray, grayish
brown, poor to well indurated, calcilutite, dolomite and sparry calcite
cement, intergranular and moldic porosity, cryptocrystalline to fine-
grained, calcilutite matrix, slightly to completely recrystallized, dolomite
powdery to sucrosic, some. finely divided organic material and thinly
laminated organic-rich zones. Minor gypsum present at 344 ft.

59

BUREAU OF GEOLOGY

Accession No.: W-10481
Owner: Union Camp Corporation
Driller: Florida Geological Survey
T7S R26E S21 1/4
Surface Elevation: 100'
Geophysical Logs Available:

Core Name: Union Camp #1
Date Drilled: 6/70
County: Clay
Lat/Long: 29052'26"/81042'15"
Core TD: 108'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 3/84

0 108 ft. Undifferentiated Sand
Quartz sand, nonclayey to clayey, nonindurated to poorly indurated, fine
to coarse, heavy minerals, scattered thin clay.

60

INFORMATION CIRCULAR NO. 103

Accession No.: W-10488 Core Name: Dupont #1
Owner: Dupont Corporation Date Drilled: 5/68
Driller: Florida Geological Survey County: Clay
T6S R23E S31 1/4 cdbd Lat/Long: 29055'40"/82002'00"
Surface Elevation: 239' Core TD: 332'
Geophysical Logs Available: G,P,S

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0-140.5 ft. Undifferentiated
Quartz sand, fine- to coarse-grained, unconsolidated to poorly indurated,
nonclayey to clayey, heavy minerals, fossiliferous at base, organic-rich
zones, occasional sandy clay beds.

140.5-315 ft. Hawthorn Group

140.5 206.5 ft. Coosawhatchie Formation
Predominantly dolomite with clay, and quartz sand, Quartz sand, light
olive-gray, fine to coarse, poor induration, clayey, dolomitic to calcare-
ous, phosphatic. Clay, light olive-gray, poor induration, sandy, dolomitic
to calcareous. Dolomite, light olive-gray, poor induration, sandy, clayey,
phosphatic.

206.5 282.5 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, olive-gray, sandy, phosphatic, dolomitic, moderate induration.

282.5-315 ft. Penney Farms Formation
Dolomite with sand and clay. Quartz sand, light olive-gray, to olive-gray,
clayey, dolomitic, phosphatic, very fine to coarse, poor induration. Dolo-
mite, yellowish gray to olive-gray, sandy, phosphatic, clayey in zones,
mollusk molds, poor to good induration.

315-332 ft. Ocala Group

315-332 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

BUREAU OF GEOLOGY

Accession No.: W-10489
Owner: Dupont Corporation
Driller: Florida Geological Survey
T5S R23E S19 1/4 dbbd
Surface Elevation: 206'
Geophysical Logs Available:

Core Name: Dupont #2
Date Drilled: 6/68
County: Clay
Lat/Long: 30002'47"/82002'02"
Core TD: 145.5'

STRATIGRAPHIC DESCRIPTION

Described by: C.W. Hendry, Jr. Date: 1968,1984
& T. Scott

0 143 ft. Undifferentiated
Quartz sand, fine- to coarse-grained, unconsolidated to poorly indurated,
nonclayey to clayey, trace to abundant heavy minerals.

143- 145.5 ft.

Hawthorn Group (?)

143- 145.5 ft. Charlton Member(?)/Coosawhatchie Formation(?)
Clay and fossil moldic dolomite.

INFORMATION CIRCULAR NO. 103

Accession No.: W-13769 Core Name: Harris #1
Owner: Mr. Harris Date Drilled: 12/77
Driller: Florida Geological Survey County: Clay
T6S R25E S7 1/4 cd Lat/Long: 29059'02"/81050'03"
Surface Elevation: 97' Core TD: 319'
Geophysical Logs Available: G,E,C

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1978

0- 60 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals.

60 302 ft. Hawthorn Group
60- 171 ft. Coosawhatchie Formation
Predominantly quartz sand with clay and dolomite beds. Quartz sand,
light olive-gray, fine to coarse, poor induration, clayey, dolomitic to
calcareous, phosphatic. Clay, light olive-gray, poor induration, sandy,
dolomitic to calcareous. Dolomite, light olive-gray, poor induration,
sandy, clayey, phosphatic.

171- 215 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration, Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, olive-gray, sandy, phosphatic, dolomitic, moderate induration.
Dolomite is most abundant.

215-302 ft. Penney Farms Formation
Predominantly sand and clay with dolomite in upper member. Predomi-
nantly dolomite with sand and clay in lower member. Quartz sand, light
olive-gray, to olive-gray, clayey, dolomitic, phosphatic, very fine to
coarse, poor induration. Clay, light olive gray to olive, sandy, phosphatic,
dolomitic, moderate induration. Dolomite, yellowish gray to olive-gray,
Sandy, phosphatic, clayey in zones, mollusk molds, poor to good indura-
Stion.

302 319 ft. Ocala Group

302-319 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
moderately recrystallized.

BUREAU OF GEOLOGY

Accession No.: W-14179 Core Name: Longbranch #1
Owner: Florida Geological Survey Date Drilled: 1/79
Driller: Florida Geological Survey County: Clay
T4S R23E S16 1/4 aad Lat/Long: 30008'55"/82000'26"
Surface Elevation: 86' Core TD: 320'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0 40 ft. Undifferentiated
Quartz sand, clay, and clayey sand with trace of heavy minerals.

40 292 ft. Hawthorn Group

40 68 ft. Charlton Member/Coosawhatchie Formation
Clayey sand and sandy clay with calcilutite matrix. Limestone, sandy,
clayey with mollusk molds. Limestone is predominant.

68- 142 ft. Coosawhatchie Formation Undifferentiated
Predominantly quartz sand with clay, and dolomite beds. Quartz sand,
light olive-gray, fine to coarse, poor induration, clayey, dolomitic to
calcareous, phosphatic. Clay, light olive-gray, poor induration, sandy,
dolomitic to calcareous. Dolomite, light olive-gray, poor induration,
sandy, clayey, phosphatic.

142- 224 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray to light
gray, sandy, clayey, phosphatic, poor to good induration. Quartz sand,
yellowish gray, clayey, dolomitic, phosphatic, fine to coarse, poor to
moderate induration. Clay, olive-gray, sandy, phosphatic, dolomitic,
moderate induration.

224 292 ft. Penney Farms Formation
Predominantly sand and clay in upper member. Predominantly dolomite
with sand in lower member. Quartz sand, light olive-gray, to olive-gray,
clayey, dolomitic, phosphatic, very fine to coarse, poor induration. Clay,
light olive-gray to olive-gray, sandy, phosphatic, dolomitic, moderate
induration. Dolomite, yellowish gray to olive-gray, sandy, phosphatic,
clayey in zones, mollusk molds, poor to good induration.

292- 320 ft. Ocala Group

292 320 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous,
Bryozoan facies, moderately recrystallized.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14193
Owner: Mr. Philips
Driller: Florida Geological Survey
T4S R25E S13 1/4 bac
Surface Elevation: 50'
Geophysical Logs Available: C,G,E

Core Name: Fox Meadows #1
Date Drilled: 2/79
County: Clay
Lat/Long: 30009'06"/81045'37"
Core TD: 357'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

Date: 1979

0 70 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated
rated, nonclayey to clayey, trace heavy minerals, sandy,
and limestone at base, fossiliferous.

70- 325 ft.

to poorly indu-
clayey shell bed

Hawthorn Group

70- 180 ft. Coosawhatchie Formation
Predominantly quartz sand with clay, limestone and dolomite beds.
Quartz sand, light olive-gray, fine to coarse, poor induration, clayey,
dolomitic to calcareous, phosphatic. Clay, light olive-gray, poor indura-
tion, sandy, dolomitic to calcareous. Dolomite, light olive-gray, poor indu-
ration, sandy, clayey, phosphatic, varies to calcilutite in very thin beds,
finely crystalline to microcrystalline.

180 236 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration, microcrystalline to very
fine. Quartz sand, yellowish gray to olive-gray, clayey, dolomitic, phos-
phatic, fine to coarse, poor to moderate induration. Clay, olive-gray,
sandy, phosphatic, dolomitic, moderate induration. Few thin limestone
beds.

236 325 ft. Penney Farms Formation
Predominantly sand and clay with dolomite in upper member. Predomi-
nantly dolomite with sand and clay in lower member. Quartz sand, light
olive-gray, to olive-gray, clayey, dolomitic, phosphatic, very fine to
coarse, poor induration. Clay, light olive-gray to olive-gray, sandy, phos-
phatic, dolomitic, moderate induration. Dolomite, yellowish gray to olive-
gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to good
induration, microcrystalline.

325 357 ft.

Ocala Group

325-357 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

BUREAU OF GEOLOGY

Accession No.: W-14219 Core Name: Jennings #1
Owner: Mr. Jennings Date Drilled: 3/79
Driller: Florida Geological Survey County: Clay
T4S R24E S27 114 ddd Lat/Long: 30006'55"/81052'57"
Surface Elevation: 90' Core TD: 492'
Geophysical Logs Available: E,G,C

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

0- 60 ft. Undifferentiated
Quartz sand, fine- to medium-grained, unconsolidated to poorly indu-
rated, nonclayey to clayey, trace heavy minerals, fossiliferous at base.

60 430 ft. Hawthorn Group

60 179 ft. Coosawhatchie Formation
Predominantly quartz sand with clay, limestone and dolomite beds.
Quartz sand, light olive-gray, fine to coarse, poor induration, clayey,
dolomitic to calcareous, phosphatic. Clay, light olive-gray, poor indura-
tion, sandy, dolomitic to calcilutite. Dolomite, light olive-gray, poor indu-
ration, sandy, clayey, phosphatic, varies to calcilutite.

179- 280 ft. Marks Head Formation
Interbedded dolomite, sand and clay. Dolomite, yellowish gray, sandy,
clayey, phosphatic, poor to good induration. Quartz sand, yellowish gray,
clayey, dolomitic, phosphatic, fine to coarse, poor to moderate indura-
tion. Clay, olive-gray, sandy, phosphatic, dolomitic, moderate induration.

280 430 ft. Penney Farms Formation
Predominantly sand and clay with dolomite in upper member. Predomi-
nantly dolomite with sand and clay in lower member. Quartz sand, light
olive-gray to olive-gray, clayey, dolomitic, phosphatic, very fine to
coarse, poor induration. Clay, light olive-gray to olive-gray, sandy, phos-
phatic, dolomitic, moderate induration. Dolomite, yellowish gray to olive-
gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to good
induration.

430 492 ft. Ocala Group

430- 492 ft. Crystal River Formation
Limestone, white to light gray, grainstone to wackestone, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-14301 Core Name: Valldejul #1
Owner: Mr. Valldejul Date Drilled: 7/79
Driller: Florida Geological Survey County: Clay
T7S R24E S20 1/4 cbc Lat/Long: 29052'04"/81055'16"
Surface Elevation: 165' Core TD: 252'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1979

- 80 ft. Undifferentiated
Sand, white to dark yellowish brown, fine- to medium-grained, non-
clayey to clayey, minor phosphate near base, unconsolidated to poor
induration.

80 229 ft. Hawthorn Group

80- 143 ft. Coosawhatchie Formation
Predominantly sand with dolomite beds. Sand, light olive-gray to olive-
gray, fine- to coarse-grained, clayey, dolomitic, phosphatic, poor indura-
tion. Dolomite, yellowish gray, sandy, clayey, phosphatic, moderate
induration, few fossil molds.

143- 157 ft. Marks Head Formation
Dolomite and sand. Dolomite, light gray, sandy, phosphatic, moderate
induration. Some sand, light olive-gray, clayey, dolomitic, phosphatic,
poor induration.

157- 229 ft. Penney Farms Formation
Sand and clay in upper portion, dolomite dominant in lower part. Sand,
olive-gray, clayey, dolomitic, phosphatic, poor induration. Clay, olive-
gray, sandy, phosphatic, dolomitic, moderate induration. Dolomite, light
gray to olive-gray, sandy, clayey, phosphatic, moderate to good indura-
tion, few fossil molds.

229 252 ft. Ocala Group

229-252 ft. Crystal River Formation
Limestone, white to light gray, calcarenitic with calcilutite matrix.

BUREAU OF GEOLOGY

Accession No.: W-14476 Core Name: Kuhrt #1
Owner: Mr. Kuhrt Date Drilled: 1/80
Driller: Florida Geological Survey County: Clay
T6S R26E S17 1/4 bba Lat/Long: 29058'58"/81043'25"
Surface Elevation: 62' Core TD: 425'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott & Date: 1980
B.A. Reik

0- 114 ft. Undifferentiated
Sand, clay and shell beds. Quartz sand, 0-65 ft., yellowish brown to
light olive-gray, fine- to medium-grained, variably clayey, silty, unconsoli-
dated to poorly indurated. Shell beds, 65-114 ft., with interbedded
sand and clay. Shell beds, light olive-gray, sandy, clayey, minor phos-
phate, mollusk-rich. Sand as O- 65 ft. Clay, olive-gray, sand, calcareous,
fossiliferous, poor induration.

114 403 ft. Hawthorn Group

114-235 ft. Coosawhatchie Formation
Interbedded dolomite and sand, dolomite most abundant in upper por-
tion, sand in lower part. Dolomite, yellowish gray, variably sandy to 50
percent, clayey to nonclayey, phosphatic, occasional fossil molds, poor
to good induration. Sand, yellowish gray to light olive-gray, fine- to
medium-grained, phosphatic, clayey, dolomitic, poor induration. Few
clay beds. Clay, light olive-gray to olive-gray, sandy, phosphatic, variably
dolomitic, poor induration.

235- 293 ft. Marks Head Formation
Interbedded dolomite, clay and sand. Dolomite, yellowish brown to gray-
ish brown, sandy, variably clayey, phosphatic, poor to good induration,
fossil molds. Clay, grayish olive to light olive-gray, silty, sandy, phos-
phatic, dolomitic, poor induration. Sand, light olive-gray to moderate
brown, clayey, dolomitic, phosphatic, poor to moderate induration.

293- 403 ft. Penney Farms Formation
Dolomite, clay and sand. Dolomite most common in lower portion. Dolo-
mite, light olive-gray to yellowish gray, sandy, phosphatic, clayey, zones
of clay clasts, brecciated zones, mollusk molds, poor to good induration.
Dolomite grades into limestone in scattered zones. Clay, olive-gray,
sandy, phosphatic and dolomitic, poor to moderate induration. Sand,
fine- to coarse-grained, dark yellowish brown to light olive-gray, clayey,
dolomitic, phosphatic, poor to moderate induration.

68

INFORMATION CIRCULAR NO. 103 69

403- 425 ft. Ocala Group

403 425 ft. Crystal River Formation
Limestone, calcarenite with calcilitute matrix, moderate to good indura-
tion, medium to high recrystallization, abundant fossils, foraminifera,
bryozoans, mollusks, fossil molds.

BUREAU OF GEOLOGY

Accession No.: W-14521 Core Name: Ms. J. #1
Owner: Florida Geological Survey Date Drilled: 2/80
Driller: Florida Geological Survey County: Clay
T7S R26E S36 1/4 ccc Lat/Long: 29050'29"/81039'48"
Surface Elevation: 80' Core TD: 385'
Geophysical Logs Available: G

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott & Date: 1982
B.A. Reik

0- 140 ft. Undifferentiated
Quartz sand, 0-55 ft., yellowish brown to moderate brown, clayey,
fine- to medium-grained, poor induration. Interbedded, clayey, calcare-
ous, quartz sand and sandy, calcareous clay; 55-140 ft., abundant
fossils, varies to very sandy, clayey shell bed.

140- 353 ft. Hawthorn Group

140 147 ft. Charlton Member/Coosawhatchie Formation
Dolomite, grayish yellow, very sandy, slightly phosphatic, abundant fos-
sil molds, moderate induration.

147 215 ft. Coosawhatchie Formation Undifferentiated
Interbedded dolomite and sand with scattered clay beds, more dolomite
in upper portion. Dolomite, yellowish gray to very light orange, sandy,
phosphatic, clayey, fossil molds, moderate induration. Quartz sand, yel-
lowish gray to light olive-gray, fine- to medium-grained, clayey, dolo-
mitic, phosphatic, poor to moderate induration. Clay, olive-gray, dolo-
mitic, moderate induration.

215 274 ft. Marks Head Formation
Clay with interbedded dolomite and sand. Clay, olive-gray, sandy, phos-
phatic, dolomitic, moderate induration. Dolomite, olive-gray to light
olive-gray, sandy, phosphatic, clayey, moderate to good induration.
Sand, olive-gray to grayish olive, clayey, dolomitic, phosphatic, moder-
ate induration.

274 353 ft. Penney Farms Formation
Upper portion predominantly sand with clay interbeds. Lower portion
predominantly dolomite with sand beds. Quartz sand, olive-gray to dark
yellowish brown, dolomitic, phosphatic and clayey, moderate to good
induration. Clay, dark yellowish brown to olive-gray, sandy, dolomitic,
phosphatic, moderate induration. Dolomite, yellowish gray to olive-gray,
sandy, phosphatic, clayey, moderate to good induration.

70

INFORMATION CIRCULAR NO. 103 71

353 385 ft. Ocala Group

353 385 ft. Crystal River Formation
Limestone, white to light gray, calcarenite, calcilutite matrix, moderate
induration, low to high recrystallization, abundant fossils, foraminifera,
mollusks, Bryozoans.

BUREAU OF GEOLOGY

Accession No.: W-14003
Owner: SWFWMD
Driller: Pridgen and Davis
T49S R26E S3 1/4 ab
Surface Elevation: 13'

Core Name: Collier County B-5
Date Drilled: 9/78
County: Collier
Lat/Long: 26014'27"/82042'01"
Core TD: 180'

Geophysical Logs Available: R,T,N,G

STRATIGRAPHIC DESCRIPTION

Described by: P. Bond

0-8 ft.

Date: 1984

No Samples

8- 16 ft. Undifferentiated Sand and Clayey Sand
White to light gray to very pale orange, poorly indurated, clayey sand.

16 86 ft. Tamiami Formation
White to very light gray, moldic, poorly to moderately indurated, calcare-
ous mud underlain by white to very light gray, moderately well indurated,
shelly or moldic limestone. Phosphate is present in trace amounts.

86- 180 ft. Hawthorn Group Undifferentiated
Very pale orange to yellowish gray, poorly indurated, calcareous sand
interbedded with white to medium gray, well to moderately indurated
limestone which is shelly or sandy and contains trace phosphate. They
are underlain by pinkish gray to yellowish gray or white, poorly indurated
to unconsolidated sand which contains shell layers and trace phosphate.

72

INFORMATION CIRCULAR NO. 103

Accession No.: W-14302 Core Name: Collier County B-6
Owner: SWFWMD Date Drilled: 9/78
Driller: Pridgen and Davis County: Collier
T48S R26E S30 1/4 aca Lat/Long: 26016'20"/82045'08"
Surface Elevation: 12' Core TD: 172'
Geophysical Logs Available: R,T,N,G

STRATIGRAPHIC DESCRIPTION

Described by: P. Bond Date: 1984

0- 10 ft. No Samples

10-172 ft. Hawthorn Group Undifferentiated
Very pale orange to yellowish gray, unconsolidated to poorly indurated
limestone, 10-65 ft. At the lowest part of this interval, thin, white to
very pale orange, well indurated, moldic limestone occurs. This interval
generally contains trace amounts of phosphate with one 5-foot interval
containing appreciable, coarse-grained phosphate. White to very light
gray to yellowish gray, poorly-sorted, plastic unit consisting of quartz
sand to granules as well as phosphate grains in a calcareous mud matrix
(65- 172 ft.), underlain by a white to very pale orange, well indurated,
shelly limestone which is in turn underlain by white to yellowish gray,
poorly indurated, calcareous, quartz sand. The lower part of the interval
consists of white to very pale yellow dolosilts with phosphate, yellowish
to light olive-gray, calcareous to dolomitic clay containing sand, phos-
phate and shell and white to very light gray, calcareous, poorly indurated,
calcareous mud with minor sand and phosphate grains.

BUREAU OF GEOLOGY

Accession No.: W-15274
Owner: SWFWMD
Driller: Prigden and Davis
T49S R26E S12 1/4 ac
Surface Elevation: 12'
Geophysical Logs Available: R,T,N,i

Core Name: Collier County B-7
Date Drilled: 9/78
County: Collier
Lat/Long: 26012'42"/82046'03"
Core TD: 180'

STRATIGRAPHIC DESCRIPTION

Described by: P. Bond

0-10 ft.

Date: 1984

No Samples

10 92 ft. Tamiami Formation
The upper portion of this interval is composed of poorly indurated, very
pale orange, sandy, calcareous mud with minor shell fragments and
phosphate grains. The lower 50 ft. of this interval is composed of lime-
stone which varies from well indurated, moldic, fossiliferous limestone to
white, shelly, sandy limestone, poorly indurated shell hash and poorly
indurated, calcareous mud.

92- 180 ft. Hawthorn Group Undifferentiated
Unconsolidated, very pale orange to very light gray or yellowish gray,
calcareous sand containing trace phosphate and minor shell is underlain
by white to very light gray, fossiliferous, moldic, moderately indurated,
sandy limestone, with minor calcareous mud. Just beneath this interval
is a thin, phosphatic, slightly shelly, moldic sand to clayey sand. The
lowest part of this interval is composed of light olive-gray, sandy clay,
poorly consolidated to moderately well indurated. Clay is calcareous and
contains trace phosphate. Some intervals are extremely shelly.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15275
Owner: SWFWMD
Driller: Pridgen and Davis
T49S R25E S36 1/4 cd
Surface Elevation: 10'
Geophysical Logs Available: R,T,N,i

Core Name: Collier County B-8
Date Drilled: 9/78
County: Collier
Lat!Long: 26009'18"/81045'33"
Core TD: 120'

STRATIGRAPHIC DESCRIPTION

Described by: P. Bond

0-10 ft.

Date: 1984

No Samples

10 90 ft. Tamiami Formation
Pale orange to light gray, fossiliferous, well indurated limestone underlain
by white to very light gray, sandy limestone which may vary in induration
from poorly to well indurated. These rocks are underlain by calcareous,
poorly indurated, white to very light gray sand and sandy limestone
which are very light gray to yellowish gray and include some well indu-
rated shell hash.

90- 120 ft. Hawthorn Group Undifferentiated
Yellowish gray to very light gray, poorly indurated, calcareous sand
underlain by white to light gray, moldic, shelly limestone. These rocks are
underlain by very pale orange to very light gray, calcareous, poorly indu-
rated sand and very light gray, well indurated, moldic, dolomitic sand-
stone. A trace of phosphate is in this interval.

BUREAU OF GEOLOGY

Accession No.: W-15557
Owner: GAC Realty Trust
Driller: Florida Geological Survey
T48S R27E S23 1/4 ca
Surface Elevation: 25'
Geophysical Logs Available: G,N,E

Core Name: Janet #1
Date Drilled: 10/82
County: Collier
Lat/Long: 26017'09"/81035'35"
Core TD: 352'

STRATIGRAPHIC DESCRIPTION

Described by: P. Bond &
M. Knapp

Date: 1984

0- 15 ft. Undifferentiated Sand and Shell
Grayish orange to yellowish orange, unconsolidated sand containing
2-10 percent calcilutite. A poorly indurated white to grayish brown
shell layer comprises the lower 5 ft. of this interval.

15-35 ft. Tamiami Formation
Light orange to grayish brown to white limestone which varies from
poorly indurated to well indurated. Accessory quartz sand varies from
2- 10 percent and fossil molds and fragments are common.

35-352 ft. Hawthorn Group Undifferentiated
Calcareous clay lying above interbedded, poorly indurated, yellowish
gray silt; poorly indurated, yellowish gray dolomite; white to light gray or
orange, variably indurated limestone; unconsolidated shell beds; uncon-
solidated to poorly indurated sand; moderately indurated sandstone; and
light orange to light gray, variably indurated dolostone.

76

INFORMATION CIRCULAR NO. 103

Accession No.: W-7171
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T1N R16E S10 1/4 aa
Surface Elevation: 110'
Geophysical Logs Available:

Core Name: Suwannee River #1
Date Drilled:
County: Columbia
Lat/Long: 30030'36"/82042'39"
Core TD: 166'

STRATIGRAPHIC DESCRIPTION

Described by: R. Hoenstine &
R. Colton

Date: 1974

0-8 ft. Undifferentiated Sand and Clay
Unconsolidated to poorly indurated, white to grayish brown, clayey,
quartz sand.

8- 165 ft. Hawthorn Group Undifferentiated
Moderately to well indurated, light gray to greenish gray, phosphatic,
clayey, vugular dolostone. Intervals of clay, sand, and chert present.

165-166 ft. Suwannee Limestone
Well indurated, light orange, crystalline, recrystallized, fossiliferous lime-
stone. Fossils present include foraminifera.

77

BUREAU OF GEOLOGY

Accession No.: W-13809
Owner: U.S. Forest Service
Driller: Florida Geological Survey
T2S R17E S11 1/4 bba
Surface Elevation: 120'
Geophysical Logs Available: G

Core Name: Osceola Natl. Forest #1
Date Drilled: 1978
County: Columbia
Lat/Long: 30020'13"/82035'08"
Core TD: 227'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

0-27 ft.

Date: 1982

No Samples

27 178 ft. Hawthorn Group Undifferentiated
Interbedded quartz sand, clay and dolomite. Quartz sand, fine- to coarse-
grained, clayey, dolomitic, phosphatic, poor induration. Clay, sandy,
dolomitic, phosphatic, silty, poor to moderate induration. Dolomite,
sandy, clayey, phosphatic, poor to good induration. Occasional fossil
molds.

178 227 ft.

Ocala Group

178 227 ft. Crystal River Formation
Limestone, packstone, poor to good induration, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-15162
Owner: U.S. Forest Service
Driller: U.S. Geological Survey
T2S R17E S23 1/4 dc
Surface Elevation: 135'
Geophysical Logs Available:

Core Name: ONF #3, Schuter #1
Date Drilled: 2/76
County: Columbia
Lat/Long: 30018'23"/82035'13"
Core TD: 167.5'

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott

0-23 ft.
23 164 ft.

Date: 1982

No Samples
Hawthorn Group

23 69 ft. Coosawhatchie Formation
Dolomite, light olive-gray, poor induration, sandy, clayey, phosphatic.
Quartz sand, light olive-gray, fine to coarse, poor induration, clayey,
dolomitic to calcareous, phosphatic. Clay, light olive-gray, poor indura-
tion, sandy, dolomitic, calcareous.

69 96 ft. Marks Head Formation
Interbedded sand and clay. Quartz sand, yellowish gray, clayey, dolo-
mitic, phosphatic, fine to coarse, poor to moderate induration. Clay,
yellowish gray to olive-gray, sandy, phosphatic, dolomitic, moderate
induration.

96- 164 ft. Penney Farms Formation
Predominantly sand and clay with dolomite in upper member, predomi-
nantly dolomite with sand and clay in lower member. Quartz sand, light
olive-gray to olive-gray, clayey, dolomitic, phosphatic, very. fine to
coarse, poor induration. Clay, light olive-gray to olive-gray, sandy, phos-
phatic, dolomitic, moderate induration. Dolomite, yellowish gray to olive-
gray, sandy, phosphatic, clayey in zones, mollusk molds, poor to good
induration.

164- 167.5 ft. Suwannee Limestone
Limestone, grainstone to packstone, good induration, grayish brown,
fossiliferous.

BUREAU OF GEOLOGY

Accession No.: W-12050 Core Name: Houghland #1-Ct
Owner: Florida Geological Survey Date Drilled: 10/73
Driller: Florida Geological Survey County: DeSoto
T38S R26E S16 1/4 da Lat/Long: 27010'00"/81043'11"
Surface Elevation: 62' Core TD: 600'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: T. Scott Date: 1982

0-21 ft. Undifferentiated Sand
Quartz sand, very-fine- to medium-grained, unconsolidated to poor indu-
ration, clayey, white, grayish brown.

21-582 ft. Hawthorn Group

21 159 ft. Peace River Formation
Predominantly plastic sediments. Quartz sand, very-fine- to very-coarse-
grained, clayey, dolomitic, phosphatic, poor to moderate induration,
grayish brown to olive-gray. Clay, sandy, phosphatic, dolomitic, poor to
good induration, variable to limestone.

159- 259 ft. Upper Member/Arcadia Formation
Predominantly carbonate, variable from dolomite to limestone, sandy,
clayey, phosphatic, yellowish gray to light olive-gray, poor to good indu-
ration. Quartz sand, fine- to medium-grained, calcareous to dolomitic,
clayey, phosphatic, poor to moderate induration, light gray to light olive-
gray. Clay, sandy, phosphatic, dolomitic to calcareous, poor to moderate
induration, yellowish gray to light olive-gray.

259 365 ft. Tampa Member/Arcadia Formation
Predominantly limestone with some dolomite (minor), sandy, clayey,
slightly phosphatic, white to yellowish gray, poor to moderate indura-
tion, fine-grained. Thin sand and clay as in upper member.

356 582 ft. Nocatee Member/Arcadia Formation
Predominantly quartz sand and clay. Quartz sand, clayey, phosphatic,
dolomitic to calcareous, fine- to medium-grained, poor induration, yel-
lowish gray to light olive-gray. Clay, sandy, phosphatic, dolomitic to
calcareous, poor to moderate induration, yellowish gray to light olive-
gray. Carbonate as in upper member.

582 600 ft. Suwannee Limestone
Limestone, wackestone to packstone, moderate induration, medium
recrystallization, white, fossiliferous.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12236 Core Name: DeSoto #1
Owner: Florida Geological Survey Date Drilled: 3/74
Driller: Florida Geological Survey County: DeSoto
T37S R25E S5 1/4 cad Lat/Long: 27017'15"/81049'55"
Surface Elevation: 68' Core TD: 104'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell & Date: 1984
P. MacGill

0 22 ft. Surficial Sands and Clay
Quartz sand, very light orange to dark yellowish brown, intergranular
porosity, nonindurated to poorly indurated, clay cement 8 12 percent in
lower 6 ft. of interval, grain size medium to fine, size range fine to
coarse, angular to subangular, organic and some peat, 20 percent
hematite at 6 17.8 ft., trace heavy minerals, manganese-oxide-stained.

22-104 ft. Hawthorn Group

22 99 ft. Peace River Formation
Predominantly quartz sand and clay. Quartz sand, dark yellowish brown,
grayish orange, light olive-gray, intergranular porosity, clay cement
(10-30 percent), poor induration, fine- to coarse-grained, size range
fine to gravel, rounded, phosphate sandy 1-25 percent, phosphate
gravel 0-25 percent, laminated, some mineral oxide and trace heavy
minerals. Clay, very light orange, light olive-gray, intergranular porosity,
poor to moderate induration, clay and calcilutite cement, some clay beds,
plastic, variably laminated and bioturbated, variably quartz sandy (0 20
percent), variably phosphate sandy (3-20 percent), some phosphate
gravel, calcilutite (0-20 percent).

99-104 ft. Arcadia Formation
Dolomite and limestone, very light orange, very light gray, intergranular,
intragranular, and moldic porosity, good induration, dolomite and calcilu-
tite cement, cryptocrystalline to microcrystalline, grain type: anhedral
dolomite grains, calcilutite, skeletal, slightly clayey, quartz and phos-
phate sandy (5-10 percent), molluscs.

BUREAU OF GEOLOGY

Accession No.: W-12237 Core Name: DeSoto #2
Owner: Florida Geological Survey Date Drilled: 3/74
Driller: Florida Geological Survey County: DeSoto
T38S R24E S23 1/4 add Lat/Long: 27009'25"/81 52'47"
Surface Elevation: 53' Core TD: 137'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell & Date: 1984
P. MacGill

0-20 ft. Surficial Sands
Quartz sand, very light orange, grayish brown, blackish red, nonindura-
ted to poorly indurated, clay and iron cement, very-fine- to medium-
grained, subangular, organic-rich in upper 7 feet, trace mineral oxide,
10- 15 ft., iron cement (50 percent), clayey in lower part (15 20 per-
cent), trace phosphate sand, laminated, bioturbated.

20 137 ft. Hawthorn Group

20- 52 ft. Peace River Formation
Quartz sand, yellowish green, intergranular porosity, poor induration,
clay cement, bioturbated, laminated, phosphate sandy, up to 5 percent
phosphate gravel, clay 15- 20 percent.

52- 137 ft. Arcadia Formation
Dolomite 52- 90 ft., very light orange, yellowish gray, moldic and inter-
granular porosity, dolomite and sparry calcite cement, good induration,
moderate alteration, anhedral to euhedral, microcrystalline, quartz sandy
10 20 percent), phosphate sandy (10 20 percent), sparry calcite 15
percent, clay 10 percent, lowermost 2 feet with burrowed thin calcilutite
layers. Limestone 90- 137 ft., very light orange, yellowish gray, inter-
granular and moldic porosity, grain size cryptocrystalline, range crypto-
crystalline to gravel, grain type calcilutite, skeletal, intraclast, allochems
0-50 percent, moderate to good induration, calcilutite and dolomite
cement, variable quartz sandy (0- 10 percent), some intervals very silty
(20-45 percent), phosphate sandy (10- 15 percent), phosphate gravel
up to 10 percent, clayey to very clayey, grades into clay at 109 113 ft.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12242 Core Name: DeSoto #3
Owner: Florida Geological Survey Date Drilled: 4/74
Driller: Florida Geological Survey County: DeSoto
T38S R25E S27 1/4 da Lat/Long: 27008'30"/81048'20"
Surface Elevation: 51' Core TD; 118'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell & Date: 1984
P. MacGill

0-7 ft. Surficial Sand and Shell
Quartz sand, very light orange, dark grayish yellow, intergranular poros-
ity, fine-grained, range very fine to medium, nonindurated, angular to
subangular, some organic in upper part, iron-stained in part, clay 1 15
percent. Limestone 4.3-7.0 ft., yellowish gray, intergranular porosity,
grain type biogenic, skeletal, crystal size range cryptocrystalline to
gravel, 40 percent allochems, moderately indurated, clay and sparry
cement, 40 percent quartz sand, 30 percent sparry calcite, 50 percent
clay, molluscs.

7-118 ft. Hawthorn Group

7-62 ft. Peace River Formation
Quartz sand and clay, yellowish gray, intergranular porosity, nonindura-
ted (sand) to poorly indurated (clay), fine- to coarse-grained, size range
fine to gravel, 9- 17.5 ft. phosphate gravel 50 percent and phosphate
sand 30 percent, remainder of interval variably phosphate sandy (2-20
percent), phosphate gravelly (0-20 percent), clayey (0 20 percent);
43- 62 ft. is clay (silty calcilutite, plastic), molluscs.

62 118 ft. Arcadia Formation
Predominantly limestone, variable to dolomite, sand from 81-90 ft.
Limestone, very light orange, yellowish gray, moldic, intergranular poros-
ity, poor to good induration, clay, calcilutite, and sparry calcite cement,
grain size fine to coarse, size range fine to granule, grain types intraclast,
skeletal, calcilutite, 8-80 percent allochems, quartz sandy (5- 15 per-
cent), phosphate sandy (2-18 percent), cement 5-15 percent, mol-
luscs, Bryozoa, pelecypods, gastropods and barnacles; 108.5- 118 ft.
dolomite, olive-gray, intergranular porosity, dolomite and calcilutite
cement, low alteration, anhedral, cryptocrystalline, slightly clayey and
quartz sandy, 15 percent phosphate sand.

83

BUREAU OF GEOLOGY

Accession No.: W-12243
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T39S R24E S18 1/4 dcb
Surface Elevation: 42'
Geophysical Logs Available:

Core Name: DeSoto #4
Date Drilled: 4/74
County: DeSoto
Lat/Long: 27005'15"/81 56'50"
Core TD: 72'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
P. MacGill

0-21 ft. Surficial Sand
Quartz sand, light orange, light gray, intergranular porosity, poorly to
nonindurated, clay and iron cement, medium-grained, organic in upper
part, iron-stained, clayey, trace phosphate sand.

21-72 ft.

Hawthorn Group

21 -66 ft. Peace River Formation
Primarily quartz sand, some dolomite below 55 ft., white to olive-gray,
primarily poor to rare good induration, clay and dolomite cement, quartz
sandy, phosphatic, clayey, bioturbated, molluscs.

66- 72 ft. Arcadia Formation
Dolomite, pale yellowish orange, very pale orange, moderate to good
induration, dolomite cement, intergranular to moldic porosity, quartz
sandy to very quartz sandy, phosphatic to very phosphatic. Interval is
Arcadia lithology but pick is uncertain due to thin interval penetrated.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12244 Core Name: DeSoto #5
Owner: Florida Geological Survey Date Drilled: 4/74
Driller: Florida Geological Survey County: DeSoto
T39S R23E S3 1/4 ccb Lat/Long: 27007'00"/81 59'57"
Surface Elevation: 36' Core TD: 80'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell and Date: 1984
P. MacGill

0-26 ft. Surficial Sand
White, light yellowish orange, yellow-gray, brown, intergranular poros-
ity, nonindurated, fine- to medium-grained, range fine to gravel, suban-
gular, some iron-stained, slightly clayey.

26 80 ft. Hawthorn Group

26- 58 ft. Peace River Formation
Quartz and phosphate sand, yellowish gray, light olive-green, intergranu-
lar porosity, poor induration, clay cement, grain size fine to medium,
range fine to gravel, quartz sand, angular, phosphate sand and gravel
(1 -30 percent) increasing downward. Clay, 15 percent, bioturbated.

58 80 ft. Arcadia Formation
Limestone, dolomite and clay. Limestone, very light orange, yellowish
gray, intergranular porosity, grain type calcilutite and cryptocrystalline,
moderate to good induration, calcilutite and dolomite cement, no allo-
chems, clayey (3-20 percent), quartz silty and sandy (3-30 percent),
trace mica, bioturbated. Clay, olive-green, plastic, moderate induration.
Dolomite, very light orange, intergranular, moldic and vugular porosity,
slightly altered, anhedral, grain size very fine, range microcrystalline to
very fine, moderate induration, organic and calcilutite cement, quartz
sandy (15 percent), phosphate sandy (10 percent), becomes less
calcareous and indurated and more quartz sandy with depth.

BUREAU OF GEOLOGY

Accession No.: W-12245
Owner: Florida Geological Survey
Driller: Florida Geological Survey
T38S R23E S1 1/4 aba
Surface Elevation: 43'
Geophysical Logs Available:

Core Name: DeSoto #6
Date Drilled: 4/74
County: DeSoto
Lat/Long: 27012'15"/81 058'37"
Core TD: 90'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell &
P. MacGill

Date: 1984

0- 10 ft. Surficial Sand
Quartz sand, white, dark red, brown, intergranular porosity, nonindura-
ted to poorly indurated, iron cement, fine-grained, range fine to coarse,
angular in upper 3 ft., subangular to rounded in remainder, organic in
upper part, 2 percent clay in lower part.

10 90 ft.

Hawthorn Group

10 90 ft. Peace River Formation
Quartz sand, limestone, dolomite and clay. Quartz sand, very light
orange, yellow-gray, intergranular porosity, medium- to fine-grained,
range fine to coarse, angular to rounded, nonindurated, clayey, phos-
phate sandy and gravelly. Limestone, yellowish gray, intergranular poros-
ity, calcilutite, no allochems, poorly indurated, calcilutite and clay
cement, 40 percent phosphate gravel, 15 percent silt, 10 percent clay.
Dolomite, yellowish gray, very light orange, intergranular, moldic, vugu-
lar porosity, low to medium alternation, anhedral to subhedral grains,
microcrystalline, good induration, dolomite, calcilutite cement, quartz
sandy to very sandy, 3.5 percent phosphate sand, molluscs at base of
interval. Clay, yellow-gray, moderately indurated, quartz sandy and silty.

INFORMATION CIRCULAR NO. 103

Accession No.: W-12311 Core Name: DeSoto #7
Owner: Tropical River Groves/L. Date Drilled: 6/74
Honea County: DeSoto
Driller: Florida Geological Survey Lat/Long: 27013'30"/81035'28"
T37S R27E S26 1/4 cdcc Core TD: 172'
Surface Elevation: 83'
Geophysical Logs Available:

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell & Date: 1984
P. MacGill

0-22.5 ft. Surficial Sand
Quartz sand, white, medium brown, black, intergranular porosity, nonin-
durated, fine-grained, range fine to medium, angular, 2 percent clay,
trace iron-stain except upper 5 feet.

22.5-172 ft. Hawthorn Group

22.5-155 ft. Peace River Formation
Interbedded quartz sand, clay, limestone and thin dolomite beds. Quartz
sand, white, light olive-gray, medium brown, intergranular porosity, non-
indurated to poorly indurated, clay cement, fine-grained, range fine to
gravel, angular to rounded, slightly phosphate sandy, very phosphate
gravelly (30 percent) at 24-26 ft., slightly to very clayey, some mol-
luscs. Clay, light olive-gray, olive-gray, intergranular and unobservable
porosity, medium to poor induration, clay cement, plastic, laminated,
some interbedded with thin sand beds, slightly to very quartz sandy,
upper beds slightly phosphatic, some molluscs. Limestone, yellowish
gray, shell hash, very clayey, some lenses of clay, clay 30 percent, quartz
sand 15 percent, poor induration. Dolomite, medium dark gray, intergran-
ular porosity, good induration, dolomite and calcilutite cement, poorly
altered, anhedral, microcrystalline, quartz sandy (10 percent).

155- 172 ft. Arcadia Formation
Limestone and dolomite, very light orange, intergranular, moldic and
vugular porosity, dolomite and calcilutite cement, moderate to good indu-
ration. 25 percent phosphate gravel, 10-15 percent quartz sand, 10
percent clay, molluscs. Dolomite is limy, anhedral, very-fine-grained.
Limestone is dolomitic, calcilutite and skeletal grains, 25 percent allo-
chems.

BUREAU OF GEOLOGY

Accession No.: W-12312
Owner: Montgomery Ranch/J.
Smith
Driller: Florida Geological Survey
T39S R27E S24 1/4 abbd
Surface Elevation: 75'
Geophysical Logs Available:

Core Name: DeSoto #8
Date Drilled: 6/74
County: DeSoto
Lat/Long: 27004'05"/81 33'56"
Core TD: 96'

STRATIGRAPHIC DESCRIPTION

Described by: K. Campbell &
P. MacGill

Date: 1984

0- 15 ft. Surficial Sand
Quartz sand, very light orange, intergranular porosity, nonindurated,
medium-grained, slightly clayey, iron-stained.

15-96 ft.

Hawthorn Group

15- 83 ft. Peace River Formation
Predominantly quartz sand, some thin clay beds. Sand, white, yellow,
gray, medium brown, intergranular porosity, nonindurated to poorly indu-
rated, clay cement where indurated, grain size variable very fine to
coarse, variably clayey, quartz sandy, phosphate sandy and gravelly and
calcilutitic, mollusc and echinoid fragments abundant, some phospha-
tized.

83- 96 ft. Upper Member/Arcadia Formation
Dolomite and limestone, very light orange, white, intergranular and
moldic porosity, good induration, calcilutite, dolomite, and sparry calcite
cement, clayey and to very clayey, slightly quartz sandy and phosphatic,
upper surface phosphatized, molluscs.

88

	Title Page
	Table of Contents
	Introduction
	Organization of report
	Well logs
	Well logs
	Back matter

MILLISECOND	CLASS.METHOD	MESSAGE
0	sobekcm_page_globals.constructor
0	sobekcm_page_globals.constructor	Application State validated or built
0	sobekcm_database.verify_item_lookup_object
0	sobekcm_page_globals.constructor	Navigation Object created from URI query string
0	sobekcm_database.verify_item_lookup_object
0	sobekcm_page_globals.display_item	Retrieving item or group information
0	sobekcm_page_globals.get_entire_collection_hierarchy	Retrieving hierarchy information
0	sobekcm_assistant.get_entire_collection_hierarchy
0	cached_data_manager.retrieve_item_aggregation
0	cached_data_manager.retrieve_item_aggregation	Found item aggregation on local cache
0	item_aggregation_builder.get_item_aggregation	Found 'all' item aggregation in cache
0	system.web.ui.page.page_load (ufdc.page_load)
0	sobekcm_page_globals.constructor.on_page_load
0	html_echo_mainwriter.add_style_references	Adding style references to HTML
0	html_echo_mainwriter.add_text_to_page	Reading the text from the file and echoing back to the output stream
214	html_echo_mainwriter.add_text_to_page	Finished reading and writing the file