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Abstracts Deadline: July 15, 2003

T90 top Terrestrial Paleobiology of South America, Cretaceous through Neogene
Paleontological Society
Peter Wilf, Pennsylvania State University, University Park, PA; Robyn J. Burnham, University of Michigan, Ann Arbor, MI; Maria A. Gandolfo, Cornell University, Ithaca, NY; Kirk R. Johnson, Denver Museum of Nature & Science, Denver, CO
Topics may include the evolution of South American biological diversity and ecosystems, biogeographic relationships, differences between Cretaceous and Paleogene biotas, biostratigraphy, and response to climate change, uplift, invasion, and other disturbances. ORAL and POSTER
Paleontology/Paleobotany; Paleoclimatology/Paleoceanography; Sediments, Clastic
T91 top Understanding Late Devonian Biotic, Climatic, and Oceanographic Events: Toward an Integrated Approach
Paleontological Society
Jared R. Morrow, University of Northern Colorado, Greeley, CO; Paul B. Wignall, University of Leeds, Leeds, UK; D. Jeffrey Over, State University of New York, Geneseo, NY
This multidisciplinary session will examine the dynamic Late Devonian interval, which was marked by dramatic fluctuations in sea level, ocean oxygenation, stable isotopic ratios, and global biodiversity, accompanied by accelerated terrestrialization and multiple bolide impacts. ORAL
Paleontology/Paleobotany; Geochemistry, Other; Paleoclimatology/Paleoceanography
T92 top Advances in the Fossil Record of Insects and Other Terrestrial Arthropods
GSA Geobiology and Geomicrobiology Division; Paleontological Society; Paleontological Research Institute
Cary Easterday, Ohio State University, Columbus, OH; Conrad Labandeira, Smithsonian Institute, Washington, D.C.
A session to bring together those working on, and those interested in, the body and trace fossil record of the dominant animal phylum on dry land. ORAL and POSTER
Paleontology/Paleobotany; Coal Geology; Paleoclimatology/Paleoceanography
T93 top Micropaleontological Proxies of Ocean Gateway Paleoceanography
Cushman Foundation
Stephen A. Nathan, University of Massachusetts, Amherst, MA; R. Mark Leckie, University of Massachusetts, Amherst, MA
Ocean gateways such as the Drake Passage, Central American Seaway, and the Indonesian Seaway have altered ocean circulation, directly affecting ocean heat transport, and in turn, climate. This session will provide the opportunity to exchange and discuss new results and ideas about ocean gateway paleoceanography based on micropaleontological proxies. ORAL and POSTER
Paleontology/Paleobotany; Paleoclimatology/Paleoceanography; Geochemistry, Other
T94 top Bridging the Gap: Ostracodes in the Earth Sciences
Paleontological Society; GSA Limnogeology Division
Gene Hunt, University of Chicago, Chicago, IL; Lisa E. Park, University of Akron, Akron, OH
This session emphasizes new, interdisciplinary advances in ostracode research. Talks will span paleontology, molecular biology, hydrogeology, paleoclimatology, and paleolimnology. Speakers will emphasize applied approaches using this important group, to solve different problems in a broad diversity of disciplines within the earth sciences. ORAL
Paleontology/Paleobotany; Quaternary Geology/Geomorphology; Hydrogeology
T95 top Organic Carbon in Lake Systems: From Primary Production to Oil Production
GSA Limnogeology Division
Kevin Bohacs, ExxonMobil Upstream Research Co., Houston, TX; Thomas C. Johnson, University of Minnesota, Duluth, MN
Lacustrine basins account for about 20% of today's supply of oil and natural gas, yet little dialogue occurs between limnologists who study processes that control carbon production in modern large lakes and geologists who exploit ancient lacustrine systems for oil and gas. This session aims to bring these two groups of scientists together. ORAL
Limnogeology; Geochemistry, Organic; Quaternary Geology/Geomorphology
T96 top Lakes and Holocene Environmental Change: The Use of Multiproxy Lake Records for Paleoclimate Reconstructions
GSA Limnogeology Division
Mark Abbott, University of Pittsburgh, Pittsburgh, PA; Andrea Lini, University of Vermont, Burlington, VT
This session is aimed at demonstrating the strength of multiproxy approaches to Holocene climate reconstruction from lake sediment records. ORAL and POSTER
Limnogeology; Paleoclimatology/Paleoceanography; Quaternary Geology/Geomorphology
T97 top Who Needs Carbon: Innovative Applications of Alternative Quaternary Geochronology Methods (Posters)
Kenneth Lepper, Los Alamos National Lab, Los Alamos, NM; Andrew Ivester, State University of West Georgia, Carrollton, GA
A spectrum of absolute dating techniques and relative geochronologic methods are now available to Quaternary scientists. This session aims to highlight the diversity and versatility of chronologic tools, other than radiocarbon, by emphasizing recent technique advances and innovative applications studies. POSTER
Quaternary Geology/Geomorphology; Archaeological Geology
T98 top Interhemispheric Records of Paleoclimate Change: Low Latitude Influences on the High Latitudes, or the Other Way Around, in Pole-Equator-Pole Syntheses
GSA Quaternary Geology and Geomorphology Division; International Geosphere/Biosphere Program-Past Global Changes
Vera Markgraf, University of Colorado, Boulder, CO; Julie Brigham-Grette, University of Massachusetts, Amherst, MA
Emerging evidence and modeling now suggest the tropics may drive the climate system on a variety of time scales. This session encourages evolving ideas aimed at pole-equator-pole comparisons of Quaternary oceanographic and terrestrial proxy records. ORAL and POSTER
Quaternary Geology/Geomorphology; Paleoclimatology/Paleoceanography; Limnogeology
T99 top Soils and a Sustainable Future-The Neglected Challenge in Geology: A Tribute to the Many Contributions and Challenges of Aldo Leopold
GSA Geology and Public Policy Committee; GSA Sedimentary Geology Division; U.S. National Committee for the Geological Sciences; Geological Association of Canada; Canadian Society of Soil Science
Paul H. Reitan, University at Buffalo, Buffalo, NY; Ward Chesworth, University of Guelph, Guelph, Ontario
This session will examine soil function in the ecosphere and its role in maintaining human societies: ecological overview; human activity and soil function-from first agriculture to present modern industrialized agriculture; paleosols and climate change; a vision of farming in N. America; and application of science in the sociopolitical arena. ORAL
Public Policy; Environmental Geoscience; Quaternary Geology/Geomorphology

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