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Surficial and Bedrock Geology of the Western Portion of the U.S.G.S. 1:100,000 Scale Marianna Quadrangle. Northwestern F...
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Permanent Link: http://ufdc.ufl.edu/UF00099551/00001
 Material Information
Title: Surficial and Bedrock Geology of the Western Portion of the U.S.G.S. 1:100,000 Scale Marianna Quadrangle. Northwestern Florida ( FGS: Open File Map Series 91 )
Physical Description: Map
Language: English
Creator: Green, R.C., Evans, W.L. III, Bryan, J.R., Paul, D.T., and Gaboardi, M.M.
Publisher: Florida Geological Survey
Place of Publication: Tallahassee, FL
Publication Date: 2002
Copyright Date: 2002
 Record Information
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management:
The author dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law and all related or neighboring legal rights he or she had in the work, to the extent allowable by law.
System ID: UF00099551:00001

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Johnson, L., 1888, The structure of Florida: American Journal of Science, 3rd Series, v.36,p

Jones, D.S., Mueller, P.A., Hodell, D.A., and Stanley, L.A., 1993, 87Sr/86Sr geochronology
Miocene marine strata in Florida in Zullo, V.A., Harris, W.B., Scott, T.M., and Portell, R.W
of Florida and Adjacent Regions: Proceedings of the Third Bald Head Island Conference on
Geology, Hilton Head Island, 1992: Florida Geological Survey, Special Publication No. 37,


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OPEN



SURFICIAL SEDIMENTS I


1:100,000 SCALE MARIANA


BY RICHARD C. GRE

JONATHAN R. BRYAN, DA
Surficial sediments and soils of the western half of the U.S.G.S. 1:100,000 scale Mariann
composed primarily of five lithologic components: quartz sand, loam, muck, clay, and limes
of these components constitute the seven sediment units represented on this map.
Data utilized in creating this map were derived from a variety of sources, including Unite
of Agriculture Soil Surveys, field observations, cores and well cuttings, surface samples, anc
Sediment types shown on this map represent soil from within the upper 6.6 feet (two meters)
Between 25 and 100 different soil types are recognized, depending on the county, by the
of Agriculture (Duffee, Allen, and Ammons, 1979; Huckle and Weeks, 1965; Overing and )
1975). In these soil surveys, soil types were categorized based on factors such as slope, moi
distribution of organic matter, acidity and other physical properties. In order to organize the
meaningful lithologic units for this map, soil types were grouped based on shared characters
reader is urged to consult the soil surveys for more detailed information about soils in the ma
The Sand, Loam, and Clay unit is predominant throughout much of the study area. As de
type contains greater than 52 percent quartz sand, greater than 27 percent clay particles, and
silt particles. This unit is most often found where the Alum BluffGroup is either exposed or
Quartz sand is the most common sediment type in the southern portion of the study area.
sediment type is generally associated with the Citronelle Formation. It should be noted that
shown on this map contains at least some quartz sand. Additionally, in many places, the unit
contains minor percentages of organic material and clay.
Sand and Loam is a unit of quartz sand and loam in which the sand concentration is great
It commonly occurs along rivers and creeks throughout the study area, including the Choctam
Creek, and Holmes Creek basins.
Muck, slowly decaying organic material containing varying amounts of sand and silt, is g
swampy regions and drainage basins. There are several large accumulations of this sedimen
Muck is often seen in areas where the Citronelle Formation is thin or missing, or in areas wlh
Alum Bluff Group cause the ponding of surface water.
Loam, which is defined as "soil material that is 7 to 27 percent clay particles, 28 to 50 pen
than 52 percent sand particles" (Overing and Watts, 1989), is present in only a few isolated
component of other units.
Loam and Clay is one of the least significant units in terms of coverage and is defined as
52 percent sand particles and more than 27 percent clay particles. This sediment type is gem
Choctawhatchee River basin and a small area north of the confluence of Wrights Creek and
Sand, Loam, Clay, and Limestone is the sediment unit of smallest aerial extent and is mos
Falling Waters State Recreation Area. This unit commonly contains variable amounts ofqua
in addition to limestone. It is most often seen in areas where the Marianna Limestone or Bri
near the surface.

Acknowledgements

The authors would like to thank Joseph Middlebrooks of Bonifay, Ronald Taylor of the I
Agriculture's Forestry Service, Chuck Mathis of the American Forest Management LLC, To
Lake Management Service, and Nelson Minor, Public Works Director for the Washington C
Department for allowing the FGS access to their properties as well as providing valuable ad'
study area. Jim Balsillie and John Phillips also provided field labor as well as lab time.

Selected Bibliography

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