Title: Rocky gator
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 Material Information
Title: Rocky gator
Series Title: Rocky gator
Physical Description: Serial
Language: English
Creator: Department of Geological Sciences, College of Liberal Arts and Sciences, University of Florida
Publisher: Department of Geological Sciences, College of Liberal Arts and Sciences, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: Fall 2005
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Bibliographic ID: UF00091765
Volume ID: VID00002
Source Institution: University of Florida
Holding Location: University of Florida
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Fall 2005


Rocky Gator

Department of Geological Sciences, University of Florida


Inside this Issue


Faculty
N ew s .............. .............. ........Page 3-4

Department
N ew s............... .... .......... Page 5

Research
News.............. ... .......... Page 6-7

Student
News...... ...... ....................Page7-9

Alumni
News.............. ... .......... Page 10


Chair's Corner
Greetings from Gainesville-An eventful Fall semes-
ter is quickly drawing to a close and we are all looking
forward to the end of a hectic semester. Fall semester
once again was characterized by the arrival of more
first year students entering the university than proj ected
or planned for. Geology classes were well subscribed
and our Department set a record of over 2500 students
enrolled in all Geology classes. At the graduate level
we also enrolled a record number of students, with 14
new students at the graduate level (they are listed later
in the newsletter). We also welcomed a new faculty
member, Kyoungwon "Kyle" Min. Kyle is an isotope
geochemist/geochronologist currently on a post-doc at
Yale and specializes in the U-Th-He system. Although







this system is used primarily to measure the ages of geologic events occurring in near surface environ-
ments and at low temperatures, Kyle's research agenda is diverse and he is one of the first geoscientists
to apply the U-Th-He system to the thermal history of meteorites. He will be building a new analytical
capability in our Rare Gas Laboratory, and we look forward to his arrival later this month.
In contrast to the positive feelings engendered by the record enrollments at the undergraduate
and graduate levels and the addition of new faculty, I would be remiss if I did not apprise you of the
continuing financial difficulties faced by the University and, consequently, by the Department. Despite
record enrollments, our budgetary support decreased this year. This highlights the importance of pri-
vate support once again and makes it an opportune time for me to briefly review how our are private
funds are used. Most of the private funds dedicated to the Department are in individual endowments that
are dedicated to specific purposes. For example, the Jon and Beverly Thompson Fund is used to provide
scholarships, the John and Carolyn Dykes Fund supports the Summer Field Camp and other field trips,
the IMC-Agrico Fund supports an incentive program that provides matching research support to stu-
dents who successfully garner their own support through GSA and other student competitions, and the
Emily and Henry Danker Fund supports the Danker award and other student recognition. The 50t
Anniversary Fund, however, is the blanket that covers all of these needs and others that cannot be met
using State funds, such as recruiting new students, extra field trips, additional scholarship support, etc.
Another critical aspect of the Anniversary Fund is that it is one the few remaining multi-donor
funds still eligible for the State of Florida's matching gift program. Unfortunately, our "grandfathered"
eligibility for the matching gift program is not permanent. Bills have been introduced in the legislature
each of the past two years that would either eliminate or reduce the matching funds available to multi-
donor funds, such as our 50th Anniversary Fund. We are currently $17,000 short of the $100,000 plateau
that will generate a state match of at least $50,000. Although this may seem a formidable task, this goal
would easily be reached if each of the >700 recipients of the Rocky Gator donated only $25. We realize
that in the wake of Katrina and Rita many of our neighbors are in difficult times and that there are many
worthy causes seeking your help, particularly during the Holiday Season. We are, however, likely facing
a unique opportunity to gain a nearly 3:1 match for the Anniversary Fund, i.e., $17,000 of new gifts will
capture a $50,000 contribution from the State. Reaching this goal will permit the Department to con-
tinue to meet the needs of its students in both good times and bad.
In closing, I want to thank all of our alumni and friends who have provided financial support to
the department over the past year and helped put us in position to reach our goal with the 50t Anniver-
sary Fund. We thank you in advance for your continued support in this fund raising effort and wish you
a most enjoyable Holiday Season.
Go Gators,
Paul





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Faculty News...

New University of Florida geology professor Ray Russo works on the flow of the
Earth's mantle and its relation to global surface tectonics. To figure out how the
Earth's mantle flows in situ, he uses both field deployments of seismometers (cur-
rently in southern Chile, and most recently before that in Hawaii) and freely-distrib-
uted seismic data, and computer modeling of large-scale tectonics. The strong link
between the two types of studies is development of a global model of the Earth's
upper mantle flow based on observations. Although geoscientists have suspected
SV since the 1930's that surface motions and deformation are strongly related to con-
vection in the Earth's mantle, this supposition has not been conclusively demon-
strated. Russo's research aims directly at resolving this question via observations of current mantle
flow directions and subsequent analyses of plate
motion histories and long-range interactions medi-
ated by mantle flow. Since oining the faculty at UF,
Russo has taught graduate classes in geophysics and
undergraduate classes in physical geology. He has
developed two new courses for upper level under-
graduates and graduate students, Terrestrial Gravity
andMagnetism and Seismology and Earth Structure,
and is currently working on a revision of an existing
geophysics class into Environmental Geophysics.
Russo and others in the Department are also devel-
oping a new course, Planetary Geology, for UF's
large population of science majors. Finally, Prof. -_ J,,,
Russo hopes to import to UF a class he taught many
times at Northwestern University, his former posting, called Science andArt in the Western World.




October saw the Gators descend upon Utah to attend
a number of professional conferences. Prof. John Jae-
ger attended the Geological Society of America
Penrose Meeting "Lessons in Tectonics, Climate and
Eustacy from the Stratigraphic Record in Arc Colli-
sion Zones" where he presented a paper entitled "Up-
lift versus Denudation: the Sedimentary Record of
Yakutat Terrane Collision and Glacial Erosion in
Southeast Alaska. During the conference, the attend-
ees were treated to an exceptional field trip that vis-
ited a number of incredible outcrops on the Colorado
Plateau, including a beautiful day at Arches National Prof Jaeger (Gator cap) and attendees of Penrose
Conference stop to enjoy the sites at TwinArches,
Arches National Monument, Utah.







Mark Brenner presented a paper at the 5t International Symposium on Wetlands in Playa Larga,
Matanzas, Cuba (October 6-10, 2005): Brenner, M., D.A. Hodell, J.H. Curtis, and B.W. Leyden.
Cambios climaticos en la region del Caribe durante los -36,000 afios pasados: implicaciones para la
distribuci6n de humedales y fauna acuatica (Climatic changes in the Caribbean region during the last
-36,000 years: implications for the distribution of wetlands and aquatic fauna). The wetlands sympo-
sium brought together scientists from Florida, Cuba, and elsewhere to discuss development of a man-
agement plan for the Zapata Swamp in southwest Cuba. The Zapata Swamp is large and shares many
characteristics with the Florida Everglades. Both aquatic ecosystems are underlain by limestone and
possess many of the same plant species. The two wetlands are also faced with similar environmental
problems brought about by human manipulation of the landscape. Both have had their hydrologies
altered by road building, agriculture, and residential development. Both are experiencing enhanced
nutrient loading as a consequence of "upstream" agriculture. Exotic flora and fauna have displaced
native plants and animals in both ecosystems, and both areas serve as habitat for large wading bird
populations. It is hoped that this initial scientific exchange will lead to future collaborative research
between Cuban and American scientists.
Dr.'s Paul A. Mueller and Philip S. Neuhoff hosted highschool students Grace E. Nagel, Columbus,
Georgia and Han Zhu, Largo, participants of the 2005 Student Science Training Program, a seven-week
residential program that is a part of the UF-Center for Precollegiate Education and Training. The
program emphasis is providing research participation, approximately 28-hours per week, with a UF
faculty research scientist and his/her research team.









Jim Channell received the William Gilbert Award from the Geomagnetism and Paleomagnetism (GP)
Section of the American Geophysical Union (AGU) at the annual AGU meeting in San Francisco (5-9
December, 2005). The award recognizes "outstanding work in magnetism of Earth materials, and of the
Earth and planets", and consists of a certificate and a "terrella".
The award is named for William Gilbert (1544-1603), who can arguably be called the founder of both
experimental rock magnetism and geomagnetism. He carried out numerous experiments on lodestone
(magnetic iron oxide ore) between about 1581 and 1600, formally establishing many of the fundamental
concepts of magnetism, such as magnetic poles, magnetic field, magnetic force and torque, shape anisot-
ropy, thermoremanence, viscous remanence and more. Using lodestones carved into spherical shapes,
which he eventually termed terrellas (little earths), Gilbert showed that the magnetic field of a terrella
has the same geometry as the field of the Earth itself, as had been documented by over a century of
compass and dip-needle measurements. He famously concluded that the source of attraction for the
compass was located not in the stars, nor in extraordinary magnetic mountains near the North and/or
South poles, but in the body of the spherical Earth, stating Magnus magnes ipse est globus terrestris, the
terrestrial globe is itself a great magnet.
Paul Mueller, David Foster, and David Mogk (Montana State University), organized a 4-day work-
shop exploring the opportunities for Earth Scope Science in the northern Rocky Mountains 15-18 Sep-
tember. The workshop was supported by a grant from the National Science Foundation and had 180
participants.










Department News...

Salt Lake City was besieged by Gators who were there to attend the Annual Meeting of the Geological
Society of America. Many outstanding papers and posters were presented at the meeting by attendees
from UF, and a well-visited recruiting booth was staffed by UF students and faculty who did their best to
convince interested student that its great to be a Florida Gator. This meeting was especially important
to several undergraduate students who were making their first presentations at a national meeting.
Laura Gregory, working with faculty member Joe Meert, presented a poster entitled "A Paleomagnetic
Study of Mafic Dikes in India: Implications for Supercontinent Assembly and Dispersal", and Alexa Van
Eaton, working with Prof Andy Zimmerman, presented a poster entitled "A Geochemical Record of
Anthropogenic Disturbances in Naples Bay Estuary, Florida". Graduate students Sam Coyner (PhD),
Warren Grice (M.Sc.), Kevin Hartl (M.Sc.), Shawn Malone (M.Sc.), and PJ Moore (PhD) presented
results of their research. Faculty members David Foster, John Jaeger, George Kamenov, Jon Martin, Joe
Meert, Paul Mueller, Liz Screaton, and Jim Vogl also gave poster presentation and talks. A number of
undergraduate students attended the meeting to learn more about graduate school and the latest in
geological research.









Professors Paul Mueller and David Foster (back Undergraduate Alexa Van Eaton and her Professor John Jaeger and undergraduates
to camera) debate the pros and cons of uranium poster entitled "A Geochemical Record of Laura Ruhl and Alexa Van Eaton try to entice
series and noble gas geochronology with Darrell Anthropogenic Disturbances in Naples Bay interested students to become Florida Gators.
Henry (LSU). Estuary, Florida"




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M.Sc. student Shawn Malone and his poster entitled "A M.Sc. student Kevin Hartl and his poster entitled "Subma-
Paleomagnetic View of the Vindhyanchal Basin, India" rine Groundwater Discharge in Lagoonal Sediments of a Ho-
locene Transgressive Barrier Island Sequence"









Research News...


Submarine groundwater discharge Interdisciplinary basic
science with applications

The popular press, in Florida and the rest of the
nation, has recently drawn attention to prob-
lems of degradation of water resources by salt
water intrusion into coastal aquifers. Less has
been written in the popular press about another
problem associated with coastal aquifers,
namely, the flow of fresh water into estuaries
and coastal zones. This process, dubbed in the
scientific literature as "submarine groundwater
discharge" or "SGD", could allow contaminants
to flow from continents to estuaries with detri-
mental effects on coastal communities equal to
salt water intrusion. Consequently, much basic
research is currently underway in Florida and
around the world to understand the physical
controls of SGD and its chemical and biologi-


cal impacts.
Jon Martin, along with stu-
dents (Kelly McGowan, Mou
Roy, Kevin Hartl, Jango
Bhadha, Eric Davis) and col-
leagues at UF, LSU, and FAMU,
has been working on problems
related to SGD for the past sev-
eral years. With grant support
totaling nearly $1.3M from the
St Johns River Water Manage-
ment District, the National Sci-
ence Foundation, and the
USGS, they are studying the
controls, magnitudes, and po-
tential for chemical contamina-
tion from SGD. Their work in
the Indian River Lagoon and
Tampa Bay, for example, has
shown that SGD is not just
simple flow of fresh water from
onshore to offshore, but is com-
plicated by physical and biologi-


Jon Martin preparing to make seepage measurements
in the winter.


Dra, on P7from IndiaRie on
Lagoon flrom Indian Ri1 ei Lauoon


cal processes at the sediment-wa-
ter interface. Important processes
include waves, tides, density con-
trasts between fresh and salt wa-
ter, water pumped by bottom-
dwelling organisms, and chemical
effects of evapotranspiration by
mangrove forests. Consequently,


SGD requires linking biology,
chemistry, and hydrology while
relying on engineering ap-
proaches and techniques. Mar-
tin and his students find this in-
terdisciplinary challenge to be
one of the most exciting aspects
of this work.


Ix








Dr. Andrew Zimmerman, working in collaboration with Dr.
Augusto Oyuela-Caycedo of the UF Department of Anthropol-
ogy spent much of July in the Peruvian Amazon examining soils
and sediments for information on the presence and agricultural
practices of early humans in the region. They were looking for
'terra pretas' or 'black earths', small areas of fertile anthropo-
genic soils found within the Amazon watershed. While surrounded
by soils generally too infertile to support agriculture, terra preta
are rich in organic matter and other nutrients and can be sustainably
cultivated. Radioactive carbon dating and the occurrence of ce-
ramics identifies these soils as prehispanic in origin and organic
geochemical indicators suggest the involvement of some type of
burning different from the modem method of slash-and-burn agri-
culture which leads to infertile soils within a few years. However, '
the origin of these soils is still a hot topic of debate. They believe ..,,
they found some of these special soils in the area around Iquitos *
Peru (the only major city in the world that can not be reached by
any road). The geochemistry (mineralogy and organic geochem-
istry) and archeology of the samples they collected will be exam-
ined by Pamela Hartman, a new graduate student entering the de-
partment to work with Dr. Zimmerman. Further plans are in the
works for an expanded research program in partnership with
Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos,
Peru.




Student News...


Kelly McGowan, a Ph.D. student working with Dr. Jon Martin, spent ten weeks this summer in Kyoto,
Japan, at the Research Institute for Humanity and Nature working with Dr. Makoto Taniguchi. Kelly
participated in the NSF East Asia and Pacific Summer Institute with 65 other graduate students from
around the country. The purpose of the program is to expose future researchers to Asian cultures, while
making international contacts with researchers in their field. Kelly spent her time in Kyoto comparing
chemical and physical methods of measuring submarine groundwater discharge.



Mr. Sergio Restrepo was awarded The South East Alliance for Graduate Education and the Professo-
riate (SEAGEP) fellowship for two years starting in Fall 2005. It is awarded to students with strong
interests in an academic career. The award includes tuition waivers for three semesters (fall, spring, fall
2006). Furthermore, Sergio has been chosen to receive the American Geological Institute's Minority
Scholarship for the academic year 2005-2006. Recipients ofAGI Minority Geoscience Scholarships are
provided with financial awards ranging from $500 to $3,000.












Congratulations to Jaime
Escobar and wife Natalia
Hoyos, they were joined to-
gether in holy matrimony
on June 17, 2005.








Il '






The University of Florida Beta Psi chapter of Sigma Gamma Epsilon chose Laura Gregory to be this
year's recipient of the W.A. Tarr Award. The award is given to a student in any area of earth science
who has demonstrated exemplary scholarship. Other factors that are considered include personality,
leadership, contribution to the school, and ability to get along with people. Our congratulations to
Laura for being this year's winner!


New Students Fall 05
Gokce Atalan, Anadolu University, Ph.D.,
Alejandro Gallego, University of Chile, Ph.D.
Jennifer Gifford, Syracuse University, MS
Dustin Grzesik, Northern Arizona University, MS
Pamela Hartman, University of Idaho, Ph.D.
Alexander Hastings, Penn State University, MS
Branden Kramer, Coastal Carolina University, MS
Kristen Marra, University of Oklahoma, MS
Jennifer Mays, University of Kansas, MS
Michael Ritorto, University of Michigan, MS
Rachel Wendt, University of Miami, MS
Chuang Xuan, China University, Ph.D.












* 4-*




3
rA-


The Ernst Award, Outstanding Teaching Award

In recognition of the fact that general education and maj ors classes require very different teaching skills,
this award is given out to two outstanding teaching assistants:
1000-2000 Level
Susanna Blair for GLY 2030 Engineering Geology and GLY 1150 Florida Geology
3000-4000 Level
Warren Grice for GLY4400 Structural Geology
Susanna and Warren each received $200 scholarships in recognition.

The Horn Award for the Outstanding Graduate Student
The Horn Award is given to one graduate student who has excelled in the following aspects during their
total graduate career at UF: eagerness, inspiration, involvement in/contribution to the geology depart-
ment, academic ability and research activity. This year's receiptient is Howie Scher, who also received
a $200 scholarship award.

Joann Labs Hochstein won the inaugural Nicol Award in Paleontology for 2004-2005 school year.
Due to the generosity of Ruth Nicol Fox, this annual award is given in honor of Professor David Nicol
to the best student research in paleontology.



Special Thanks goes
to Jody Franklin for
putting together this edition
of the Rocky Gator. Jody is out
on maternity leave for 3 months.
She has another boy to add to
herjoy.









Alumni News...

Craig W. Oyen
June 27, 1963 September 5, 2005
Dr. Craig W. Oyen, 42, of Shippensburg, PA, died unexpectedly in Arizona on Monday, September 5.
Born in Williston, ND on June 27, 1963 to Mr. and Mrs. Walter Herbert (Norma) Oyen, he graduated
with honors as the WHS Senior Class President in 1981. He earned his B.S. at NDSU (Fargo, ND),
continued with graduate studies at the University of Tennessee (Knoxville, TN), and completed his
Ph.D. in Geology at the University of Florida. Following three years on the faculty of Georgia South-
ern University (Statesboro, GA), in 1998 hej oined the faculty of Shippensburg University (Shippensburg,
PA), where he was an Assistant Professor in the Geography and Earth Science Department. Craig
maintained an active, enthusiastic involvement in scientific research, resulting in numerous national
and international publications and presentations, and travels to locations around the globe. At the time
of his death he was on sabbatical from Shippensburg University, working with the National Park
Service in the Grand Canyon, a place he dearly loved. Craig's family is very proud of his dedication and
contributions to the profession he cherished. Remembrances may be designated for a student field
research scholarship to be established in his memory, and correspondence may be addressed to Herb
and Norma Oyen, 1228 Park Place, Williston, ND 58801.



John Chadwick (Ph.D., May 2002) is a new tenure-track Assis-
tant Professor at the University of North Carolina in Charlotte.
John spent the past three years as a postdoc at Idaho State Univer-
sity, where he conducted satellite remote sensing and precision GPS
research, and somehow found time to get married to another former
Geo-Gator (Claire Grimm, B.S. 2001). His newjob will involve
teaching introductory and advanced remote sensing, GIS and GPS
classes, and introductory Geology classes. He has several research
projects in the works, including studies of the lava flows at Craters
of the Moon National Monument and environmental changes
around Yellowstone Park. Meanwhile, Claire is teaching geology John And Claire Chadwick
labs at UNC and will teach Mineralogy and Optical Mineralogy in
the Spring. John will be annoyed if Claire's office is bigger than
his!






Susan Tierney (nee' Kulp) is teaching 8th grade Physical Science at UF's P K Yonge
Developmental Research School here in Gainesville. She has almost completed a Master's Degree in
Education from UF focusing on teaching secondary science. Her classroom is open to anyone who
wants to share their physics or chemistry-related research with her students!















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Laura Gregory Jill Chapman Emily Grudem
Geology Club President Sigma Gamma Epsilon President


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