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Abstracts Deadline: July 15, 2003


T110 top Assessing the Deglacial Record of Quaternary Ice Sheets
GSA Quaternary Geology and Geomorphology Division
Tracy A. Brennand, Simon Fraser University, Burnaby, BC; Jerome-Etienne Lesemann, Simon Fraser University, Burnaby, BC
This session explores different styles, spatial patterns, and chronologies of deglaciation as inferred from the geomorphic and sedimentary record of past ice sheets. ORAL
Quaternary Geology/Geomorphology; Paleoclimatology/Paleoceanography
T111 top McMurdo Dry Valleys, Antarctica, 1903-2003: A Celebration of a Century of Science
GSA Limnogeology Division
W. Berry Lyons, Ohio State University, Columbus, OH; Andrew G. Fountain, Portand State University, Portland, OR
The first humans entered the McMurdo Dry Valleys, Antarctica region, in December 1903. Since this time, the dry valleys have yielded important geological and paleoclimatic data as well as provided a terrestrial analog to Mars. ORAL
Quaternary Geology/Geomorphology; Paleoclimatology/Paleoceanography; Geomicrobiology
T112 top Tills We Meet Again: Terrestrial Records of Pre-Wisconsinan Glaciations, their Relationship to Other Pleistocene Climate Records, and Their Paleoclimatic Significance
Greg Balco, University of Washington, Seattle, WA; Carrie Jennings Patterson, University of Minnesota, St. Paul, MN
Glaciers are the defining feature of the Quaternary Earth, yet most pre-Wisconsinan glacial deposits are not accurately dated. We seek papers that apply old or new dating or correlation techniques to early and middle Pleistocene terrestrial sediments, with the aim of illuminating the role of ice sheets in the Quaternary climate system. ORAL
Quaternary Geology/Geomorphology; Paleoclimatology/Paleoceanography; Stratigraphy
T113 top Glaciers, Glacial Geology, and Glacial Ecosystems in the National Parks
National Park Service
Harold S. Pranger, Denver, CO
Effective use of monitoring and research is needed to recognize and anticipate unique ecological aspects of park units containing glaciers. ORAL
Environmental Geoscience; Quaternary Geology/Geomorphology; Geoscience Information/Communication
T114 top Isotopic Determination of Sediment Provenance: Techniques and Applications
GSA Sedimentary Geology Division; Society for Sedimentary Geology
Paul Karl Link, Idaho State University, Pocatello, ID; Mark Fanning, Australian National University, Canberra, Australia; J. Brian Mahoney, University of Wisconsin, Eau Claire, WI
Isotopic and geochronologic techniques (detrital zircon U-Pb, Ar-Ar on K-feldspar and mica, Sm-Nd and Hf isotopes) to determine provenance and history of sedimentary basins. Session includes geologic applications to tectonic reconstruction. ORAL and POSTER
Sediments, Clastic; Geochemistry, Other; Tectonics
T115 top New Applications of Provenance Analysis to Landscape Evolution and Sediment Transport Systems
GSA Sedimentary Geology Division; Society for Sedimentary Geology
Matthias Bernet, University of Canterbury, Christchurch, New Zealand; Kari Bassett, University of Canterbury, Christchurch, New Zealand
This session will present new applications of sedimentary provenance analysis to exhumation studies, sediment recycling, and sediment transport systems. Emphasis will be on innovative applications of provenance analysis to landscape evolution and on new uses for established techniques, such as SEM-cathodoluminescence analysis of quartz. ORAL and POSTER
Sediments, Clastic; Stratigraphy; Tectonics
T116 top Sabkha Environments, Recent Insights
GSA Hydrogeology Division; GSA Sedimentary Geology Division; Society for Sedimentary Geology
Warren W. Wood, Reston, VA; Abdulrahman S. Alsharhan, U.A.E. University, Al-Ain, United Arab Emirates; Peter T. Kolesar, Utah State University, Logan, UT
In 40 years since wide recognition of importance of sabkhas in the geologic record, new models of ecology, chemical evolution, solute, and water sources associated with sabkha development have been proposed. Their use in deciphering climate change has added to their interest. ORAL
Hydrogeology; Sediments, Carbonates; Paleoclimatology/Paleoceanography
T117 top Influence of Tsunamis in the Geological Record
GSA Sedimentary Geology Division
Frank R. Ettensohn, University of Kentucky, Lexington, KY; Kevin G. Stewart, University of North Carolina, Chapel Hill, NC
Tsunamis are relatively common products of major geologic processes, yet their deposits have received remarkably little attention, especially in the pre-Quaternary record. Hence, the session is devoted to understanding diagnostic characteristics of tsunami deposits and using these to interpret the older sedimentary record. ORAL
Sediments, Clastic; Marine/Coastal Science; Neotectonics/Paleoseismology
T118 top From the Abyss to the Beach: In Honor of Orrin H. Pilkey
GSA Sedimentary Geology Division
David M. Bush, State University of West Georgia, Carrollton, GA; Bruce F. Molnia, U.S. Geological Survey, Reston, VA
Orrin Pilkey has touched the lives of many. This session celebrates the remarkable impact of a career that spanned deep-sea, continental shelf, and coastal studies. We hope to do more than simply rehash 40 years of research and education, but to also celebrate the accomplishments of a generation of researchers and educators he helped produce. ORAL
Sediments, Clastic; Marine/Coastal Science; Geoscience Education
T119 top Revisiting the Biogeochemistry of Black Shales and Oxygen-Deficient Marine Environments
GSA Sedimentary Geology Division; Geochemical Society; Society for Sedimentary Geology
Richard B. Schultz, Elmhurst College, Elmhurst, IL; Timothy W. Lyons, University of Missouri, Columbia, MO
Origins of organic-rich facies will be explored in light of new research on bacterial redox pathways, trace metal biogeochemistry, nutrient cycling, organic geochemistry, isotope techniques, chemostratigraphy, ecological and petrographic relationships, depositional models, and improved modern analogs. ORAL and POSTER
Geochemistry, Organic; Paleoclimatology/Paleoceanography; Sediments, Clastic
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