- T80
The Impact of Crystal Chemistry in the Earth Sciences: A Tribute to Charles T. Prewitt, Recipient of the 2003 Roebling Medal of the Mineralogical Society of America
Mineralogical Society of America
Nancy L. Ross, Virginia Tech, Blacksburg, VA; Russell J. Hemley, Carnegie Institution of Washington, Washington, D.C.; Ross J. Angel, Virginia Tech, Blacksburg, VA
- A session to celebrate the fundamental contributions of Charles T. Prewitt, the 2003 Roebling Medallist of the Mineralogical Society of America, to the fields of crystallography, crystal chemistry, mineralogy, and mineral physics. ORAL and POSTER
- Mineralogy/Crystallography
- T81
Multi-Proxy Terrestrial Records and the Ocean-Climate System: Links and Perturbations in the Cretaceous
GSA Sedimentary Geology Division
David B. Finkelstein, Indiana University, Bloomington, IN; Darren R. Gröcke, Royal Holloway University of London, Egham, Surrey, UK; Lisa M. Pratt, Indiana University, Bloomington, IN
- Topics concerning the geochemical signature of botanical, pedogenic, and lacustrine materials, terrestrial-marine correlations, terrestrial biotic response to atmospheric and oceanic change, and the record of pCO2 and climate in the Cretaceous are encouraged. ORAL and POSTER
- Paleoclimatology/Paleoceanography; Geochemistry, Other; Paleontology/Paleobotany
- T82
Ocean Chemistry Through the Mesozoic and Cenozoic
Geochemical Society
Adina Paytan, Stanford University, Stanford, CA; Christina De La Rocha, University of Cambridge, Cambridge, UK
- There is considerable evidence that the chemical composition of the ocean has changed over the past 550 M.Y. These changes relate to changes in the global biogeochemical cycles. New research in this field will be presented. ORAL and POSTER
- Paleoclimatology/Paleoceanography; Geochemistry, Other
- T83
Reevaluating the Equatorial Temperature Paradox for Mesozoic and Cenozoic Warm Episodes
Timothy S. White, U.S.Geological Survey, Anchorage, AK; David Pollard, Pennsylvania State University, University Park, PA; Chris Poulsen, University of Southern California Earth Sciences, Los Angeles, CA
- During past warm episodes, many proxy data indicate greater warming at high latitudes than at low latitudes. This thermal gradient cannot be sustained in climate models by increased CO2 alone. We will address the paradox using a combined data-modeling approach. ORAL and POSTER
- Paleoclimatology/Paleoceanography; Geochemistry, Other; Stratigraphy
- T84
Pliocene Climates-Sea Levels and Ice Volumes (Posters)
Detlef A. Warnke, California State University, Hayward, CA; Lloyd Burckle, Lamont-Doherty Earth Observatory, Palisades, NY
- Abstracts are encouraged on all aspects of Pliocene climate research, including field work on all continents and marine research in all oceans. Participation by students is encouraged. POSTER
- Paleoclimatology/Paleoceanography
- T85
Signs of Life: the Role of Paleobiology in the History of Evolutionary Theory and our Attempts to Understand the Changing Nature of the Biosphere
GSA History of Geology Division; Paleontological Society; Society of Vertebrate Paleontology; Cushman Foundation; History of Earth Science Society (HESS)
Roger D.K. Thomas, Franklin & Marshall College, Lancaster, PA; Gary D. Rosenberg, Indiana University-Purdue University, Indianapolis, IN
- Fossils are static, inanimate objects. This session will explore the ways in which they have been brought to life. Studies of earlier work, not originally characterized as paleobiology, will set the stage for a critical assessment of 20th century paleobiology. ORAL
- History of Geology; Paleontology/Paleobotany; Geomicrobiology
- T86
Fossil Decapod Crustacean Paleobiogeography, Systematics, and Evolution Over the Past 20 Years: In Honor of Ross and Marion Berglund (Posters)
Paleontological Society, Paleontology Society
Elizabeth Nesbitt, Burke Museum, Seattle, WA; Torrey G. Nyborg, Loma Linda University, Loma Linda, CA
- Fossil decapod crustaceans collected and donated by Ross and Marion Berglund have yielded a number of new taxa from the Pacific Northwest of North America, immensely adding to our knowledge of fossil decapod crustacean paleobiogeography, systematics, and evolution. POSTER
- Paleontology/Paleobotany
- T87
Paleo-Plant Ecophysiology
Paleontological Society
Dana L. Royer, Pennsylvania State University, University Park, PA; Christopher J. Williams, University of Pennsylvania, Philadelphia, PA
- Recent advances in paleo-plant ecophysiology have sharpened our understanding of ancient terrestrial ecosystems and climates. This session will focus on studies that provide mechanistic linkages between plant physiology, ecology, and climate. ORAL
- Paleontology/Paleobotany; Paleoclimatology/Paleoceanography; Environmental Geoscience
- T88
The Hunt for Precambrian Life: An Integrated Approach
Paleontological Society, GSA Geobiology and Geomicrobiology Division; Precambrian (at large)
David J. Bottjer, University of Southern California, Los Angeles, CA; J. William Schopf, University of California, Los Angeles, CA
- Detection of Precambrian life is a strong focus of attention for earth and biological scientists. This session centers on the latest advances in methods used for, and results of, searches for evidence of such ancient life, as shown by studies of fossils, sedimentary structures of biologic origin, and isotopic and organic geochemical data. ORAL and POSTER
- Paleontology/Paleobotany; Geomicrobiology; Precambrian Geology
- T89
Evolutionary and Ecological Links Between Terrestrial and Marine Ecosystems in the Phanerozoic
GSA Sedimentary Geology Division; Paleontological Society
Wolfgang Kiessling, Humboldt University, Berlin, Germany; Allister Rees, University of Chicago, Chicago, IL
- This session will focus on large-scale ecological and evolutionary patterns in Phanerozoic terrestrial and marine environments. The ecological links between terrestrial and marine ecosystems are explored using paleontological, sedimentological, geochemical, and modeling approaches. ORAL
- Paleontology/Paleobotany; Paleoclimatology/Paleoceanography; Geochemistry, Other
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