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Abstracts Deadline: July 15, 2003

T120 top Sedimentology and Oceanography of Phosphogenic Systems
GSA Sedimentary Geology Division; Society for Sedimentary Geology
Peir K. Pufahl, Queen's University, Kingston, ON; Eric E. Hiatt, University of Wisconsin, Oshkosh, WI
This session will bring together a diverse group of researchers to explore controversies surrounding phosphorus accumulation and preservation of sedimentary apatite. A process-oriented approach will elucidate oceanographic and depositional controls over geologic time. ORAL and POSTER
Sediments, Carbonates; Sediments, Clastic; Paleoclimatology/Paleoceanography
T121 top Fortieth Anniversary of Sloss's Cratonic Sequences: Sequence Stratigraphy of the Sauk Sequence
GSA Sedimentary Geology Division
Kevin R. Evans, Southwest Missouri State University, Springfield, MO; James F. Miller, Southwest Missouri State University, Springfield, MO
Sloss's classic publication on North American stratigraphy introduced the concept of Sequences. We encourage papers on all aspects of sequence stratigraphy within the Sauk Sequence. This session follows a field trip to spectacular localities in western Utah. ORAL and POSTER
Stratigraphy; Sediments, Carbonates; Paleontology/Paleobotany
T122 top Clinoforms: Past, Present, and Modeled
GSA Sedimentary Geology Division; Society for Sedimentary Geology
Charles A. Nittrouer, University of Washington, Seattle, WA; Lincoln F. Pratson, Duke University, Durham, NC; David Mohrig, Massachusetts Institute of Technology, Cambridge, MA
Clinoforms are a fundamental unit of stratigraphy that is observed in a range of sedimentary environments over scales of centimeters to tens of kilometers. This session will examine observational (modern and ancient), experimental, and modeling studies of their formation. ORAL and POSTER
Stratigraphy; Sediments, Clastic; Marine/Coastal Science
T123 top Advances in Stratigraphic Analyses Using Ground Penetrating Radar
GSA Geophysics Division; GSA Engineering Geology Division; GSA Sedimentary Geology Division
Gregory S. Baker, University at Buffalo (SUNY), Buffalo, NY; Harry M. Jol, University of Wisconsin, Eau Claire, WI
The session will cover a broad range of ground penetrating radar (GPR) studies related to stratigraphic analyses. Topics include reservoir and environmental site characterization, hydrogeophysics, geological hazard investigation, and stratigraphic-facies analyses of geomorphic environments (including eolian, fluvial, glacial, and coastal). ORAL and POSTER
Geophysics/Tectonophysics/Seismology; Quaternary Geology/Geomorphology; Hydrogeology
T124 top The Geologic Record of Biosphere Dynamics-The Key to Understanding the Biotic Effects of Future Environmental Change
GSA Geobiology and Geomicrobiology Division
Karl W. Flessa, University of Arizona, Tucson, AZ; David A. Feary, National Research Council, Washington, D.C.
This session will focus on a recent National Research Council report that proposes strategies for integrating earth and biological sciences as a means of understanding biotic response to environmental change, and recommends programmatic, infrastructural, and management changes to best advance this emerging interdisciplinary science area. ORAL
T125 top Geology and Paleoecology of the Beringian Subcontinent: To Honor the Career of David M. Hopkins
Alaska Quaternary Center (AQC)
Sarah J. Fowell, University of Alaska, Fairbanks, AK; Patricia Heiser, University of Alaska, Anchorage, AK
The concept of Beringia as a subcontinent with a unique flora and fauna can be largely attributed to David M. Hopkins. This session will highlight current research by Dave's students, coworkers, and colleagues. Presentations should focus on advances in Beringian paleoecology and future research directions. ORAL and POSTER
Quaternary Geology/Geomorphology; Paleoclimatology/Paleoceanography; Archaeological Geology
T126 top Testing Rodinia Using New Maps Compiled for Each Craton through IGCP 440
GSA Structural Geology and Tectonics Division, International Geologic Correlation Project; Tectonics Special Research Center
Karl E. Karlstrom, University of New Mexico, Albuquerque, NM; Svetlana V. Bogdanova, University of Lund, Lund, Sweden
The pre-Pangean supercontinent of Rodinia has been the subject of debate since it was proposed over a decade ago. This session will present results from an international correlation project (IGCP 440) designed to compile new data from each craton to test some of the numerous models for the shape, evolution, and even the existence of Rodinia. ORAL
Tectonics; Precambrian Geology
T127 top New Perspectives on Neoproterozoic-Early Paleozoic Development of Western Laurentia: In Honor of John Cooper
GSA Sedimentary Geology Division
Mike Pope, Washington State University, Pullman, WA; Chris Fedo, George Washington University, Washington, D.C.
This session will examine new perspectives (e.g., detrital zircon geochronology, LA-MC-ICP-MS, detailed sequence stratigraphy, isotope chemostratigraphy, geobiology, etc.) that are being used to determine the Neoproterozoic-Early Paleozoic development of western Laurentia. ORAL and POSTER
Stratigraphy; Sediments, Carbonates; Sediments, Clastic
T128 top Barremian to Turonian Carbonate Platform Facies in Northeastern Mexico, their Paleogeographic, Paleoceanic, and Paleoclimatic Implications: Comparison with Coeval Facies Elsewhere in the Tethys (Posters)
GSA Sedimentary Geology Division; Society for Sedimentary Geology
Florentin J. Maurrasse, Florida International University, Miami, FL
Comparison of Lower to Upper Cretaceous facies of northeastern Mexico with coeval deposits around the Tethys for a better understanding of spatial and temporal changes in relation to the paleogeography, paleoceanography, and paleoclimate of that time interval. POSTER
Stratigraphy; Paleoclimatology/Paleoceanography; Sediments, Carbonates
T129 top The Jurassic System of North America: Stratigraphy, Tectonics, and Depositional History (Posters)
GSA Structural Geology and Tectonics Division; GSA Sedimentary Geology Division; Society for Sedimentary Geology
William C. Parcell, Wichita State University, Wichita, KS
This session will focus on the depositional and tectonic evolution of North America during the Jurassic Period. We encourage contributions that discuss the causal relationships between sedimentologic processes, tectonic events, and the resulting stratigraphic record during this period. POSTER
Stratigraphy; Tectonics; Sediments, Clastic

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