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Abstracts Deadline: July 15, 2003

T50 top Henry Darcy's 200th Birthday: Fundamental Advancements Through Observation and Analysis
GSA Hydrogeology Division; National Ground Water Association; GSA History of Geology Division; History of Earth Science Society (HESS)
Vicki J. Kretsinger Grabert, Luhdorff and Scalmanini, Consulting Engineers/AGWSE (NGWA), Woodland, CA; Graham E. Fogg, University of California, Davis, CA
This session will honor Henry Darcy, his research approach, and his profound Law. Planned presentations include a historical perspective of his accomplishments and recent, observation-based research that will fundamentally change our understanding of groundwater flow and mass transport phenomena and help identify future research needs. ORAL
Hydrogeology; Engineering Geology; History of Geology
T51 top M. King Hubbert at 100: The Enduring Contributions of Twentieth-Century Geology's Renaissance Man
GSA Hydrogeology Division, National Ground Water Association; U.S. National Chapter of the International Association of Hydrogeologists; GSA Geophysics Division; GSA Sedimentary Geology Division; GSA Structural Geology and Tectonics Division; GSA History of Geology Division
Alan E. Fryar, University of Kentucky, Lexington, KY; T. N. Narasimhan
M. King Hubbert (1903-1989) made fundamental contributions to structural geology, tectonics, hydrogeology, and petroleum geology. He forecast the decline in worldwide petroleum reserves and advanced the development of geology as a quantitative discipline. This session explores Hubbert's legacy as scientist, educator, citizen, and visionary. ORAL
Hydrogeology; Structural Geology; History of Geology
T52 top Twenty Years of Exploration and Innovation in Quantitative Hydrogeology: In Honor of Ed Sudicky
GSA Hydrogeology Division
Rene Therrien, Universite Laval, Quebec, QC; Motomu Ibaraki, Ohio State University, Columbus, OH
Since obtaining a Ph.D. in hydrogeology in 1983, Ed Sudicky has conducted innovative research on topics such as multiphase flow, stochastic analysis in heterogeneous and fractured media, coupled surface/groundwater flow and contaminant migration in hydrologic systems. We are soliciting talks on the state of the science of these and related topics. ORAL
T53 top Watershed-Based Research and Education: The State of the Science
GSA Hydrogeology Division; GSA Geoscience Education Division; GSA Quaternary Geology and Geomorphology Division; Geochemical Society
Rachel O'Brien, Allegheny College, Meadville, PA; Christopher J. Woltemade, Shippensburg University of Pennsylvania, Shippensburg, PA
We seek a diverse group of scientists and watersheds studied for the session. Topics for consideration include innovations in field methods, data collection and management, watershed monitoring, and/or research findings. Abstracts related to undergraduate education are also encouraged. ORAL
Hydrogeology; Environmental Geoscience; Quaternary Geology/Geomorphology
T54 top Geochemical Modeling of Arsenic Speciation, Transformation, and Reactive Transport in Groundwater
GSA Hydrogeology Division
Chen Zhu, University of Pittsburgh, Pittsburgh, PA; Robert Ford, U.S. Environmental Protection Agency, Ada, OK
Contributions are sought for all aspects of arsenic geochemical modeling in groundwater, including thermodynamic database revisions, modeling sorption to aquifer solids, modeling redox reaction dynamics, and field applications of geochemical models. ORAL
Hydrogeology; Geochemistry, Aqueous; Geomicrobiology
T55 top Groundwater and Watershed Analysis Across Political Boundaries
GSA Hydrogeology Division
Barry J. Hibbs, California State University, Los Angeles, CA; Dave Rudolph
Many aquifers and surface watersheds underlie and cross geopolitical boundaries. This session examines specific issues of transboundary water resources, including successful strategies and impediments in technical case studies, security, management, and modeling. ORAL
Hydrogeology; Public Policy; Environmental Geoscience
T56 top Recent Advances in Outcrop-Aquifer Analog Studies: Insights from Geophysical, Geostatistical, and Modeling Techniques
GSA Hydrogeology Division
Andrew C. Muller, Millersville University, Millersville, PA
Insights from geophysical, geostatistical, and modeling efforts will be presented as they apply to outcrop-analog studies in heterogeneous porous media from various depositional environments. ORAL and POSTER
Hydrogeology; Stratigraphy; Environmental Geoscience
T57 top The Role of Diffusion in Groundwater Contaminant Behavior
GSA Hydrogeology Division
Matthew W. Becker, University at Buffalo, Buffalo, NY; Beth Parker, University of Waterloo, Waterloo, ON
The role of molecular diffusion in contaminant behavior may be different in consolidated and unconsolidated dual-porosity media, but the transport mechanisms are similar. We encourage interaction of researchers working in heterogeneous sediments and fractured rocks and clay. We especially solicit contributions involving field or laboratory data. ORAL and POSTER
Hydrogeology; Environmental Geoscience
T58 top Saturated and Vadose Zone Hydrogeology, Environmental Geology, and Biogeochemistry of the Department of Energy Hanford Site in Southeastern Washington State
GSA Hydrogeology Division
Timothy D. Scheibe, Pacific Northwest National Lab, Richland, WA; Christopher J. Murray, Battelle Pacific Northwest National Lab, Richland, WA; Andy L. Ward, Pacific Northwest National Lab, Richland, WA
This session will explore Hanford Site geology as the setting for complex hydrologic, geochemical, and microbiological processes that influence the fate, transport, and remediation of radiological and hazardous wastes in the vadose zone and groundwater. ORAL and POSTER
Hydrogeology; Environmental Geoscience; Engineering Geology
T59 top Pharmaceuticals and Emerging Organic Contaminants in the Hydrologic Environment: Progressing from Occurrence to Fate and Effects
GSA Hydrogeology Division; Toxic Substances Hydrology Program, Water Resources Discipline, U.S. Geological Survey
Edward T. Furlong, U.S. Geological Survey, Denver, CO; Dana W. Kolpin, U.S. Geological Survey, Iowa City, IA
The study of pharmaceuticals and other organic wastewater contaminants is advancing beyond simple descriptive studies and detailed investigations of the transport, fate, and effects of these compounds are underway by many research groups. The presentations in this session provide a state-of-the-science overview for this exciting research area. ORAL
Hydrogeology; Environmental Geoscience; Limnogeology

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