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GSA2016 ANNUAL MEETING & EXPOSITION
T34. Characterization and Modeling of Biogeochemical
Redox Processes
Cosponsors: GSA Mineralogy, Geochemistry, Petrology, and
Volcanology Division; GSA Geobiology & Geomicrobiology Division
Disciplines: Geochemistry, Geomicrobiology, Soils
Advocates: Guoping Tang; Jennifer Pett-Ridge; Christine O’Connell
We aim to bring together experimentalists and modelers from
multiple disciplines to communicate new ideas and methods in
obtaining predictive understanding of and developing integrated
models for biogeochemical redox processes across scales.
T35. Contamination and Human Impact Records from Lake and
Estuarine Sediment
Cosponsors: GSA Limnogeology Division; Marine/Coastal Science
Discipline; Paleontological Society
Disciplines: Geochemistry, Limnogeology, Sediments, Clastic
Advocate: Johan C. Varekamp
Lakes and estuaries carry archival information in their sedi-
ment on contaminant fluxes and changes in landscape and
hydrology commonly caused by human activities. Reconstruction
of pre-anthropogenic conditions aids in evaluating the severity of
human impacts.
T36. Environmental Effects Related to Unconventional Oil and
Gas Resources
Cosponsors: GSA Environmental and Engineering Geology
Division; GSA Geology and Society Division
Disciplines: Geochemistry, Hydrogeology, Environmental
Geoscience
Advocates: Anna K. Wendt; David A. Yoxtheimer; Stephen G.
Osborn; Owen A. Sherwood
The development of unconventional resources has led to
concern for the environment and public health. Research on
potential impacts is required because unconventionals are
projected to be the largest source of natural gas in the U.S.
T37. Excursions, Extinctions, and Environmental Change: New
Advances in Geochemical Tools Linked to Critical Intervals of
Environmental and Biotic Change in Earth History
Cosponsors: GSA Sedimentary Geology Division; GSA Geobiology
& Geomicrobiology Division; SEPM (Society for Sedimentary
Geology); Geochemical Society; Paleontological Society; GSA
Mineralogy, Geochemistry, Petrology, and Volcanology Division
Disciplines: Geochemistry, Paleontology, Diversity, Extinction,
Origination, Stratigraphy
Advocates: Cole T. Edwards; Seth A. Young; Jeremy Owens;
Benjamin C. Gill
This session will highlight emerging research that broadens our
understanding of the links between paleoenvironmental change,
recorded in traditional vs. non-traditional isotopic/elemental
proxies, with the paleontological record of extinction and biodi-
versification within the sedimentary record.
communi t y.geosociet y.org / gsa2 016
T38. Fluid Flows, Chemical Reactions, and Transport in
Nanopores of Geologic Media
Cosponsors: GSA Energy Geology Division; GSA Mineralogy,
Geochemistry, Petrology, and Volcanology Division
Disciplines: Geochemistry, Energy Geology, Hydrogeology
Advocates: Mei Ding; Yifeng Wang
This session will focus on the effects of nanopore confinement on
geofluid properties, mineral-fluid interface chemistry, fluid phase
and transport behavior, overall fluid-rock interactions, and their
implications to energy-related subsurface science and engineering.
T39. Go Small or Go Home: Microbeam Techniques Applied to GSA TODAY | www.geosociety.org/gsatoday
Igneous, Metamorphic, and Sedimentary Petrology of Earth
and Planetary Materials
Cosponsors: GSA Mineralogy, Geochemistry, Petrology, and
Volcanology Division; GSA Structural Geology and Tectonics
Division; GSA Planetary Geology Division
Disciplines: Geochemistry, Planetary Geology, Tectonics/
Tectonophysics
Advocates: Kate Souders; Paul J. Sylvester
We highlight method development and novel application of
in-situ microbeam techniques (e.g., EPMA, SEM/TEM/FIB,
3D CT, EBSD, SIMS, LA-[MC]-ICPMS) in Earth and planetary
sciences. Presentations on chemical mapping and elemental/
isotopic analyses are welcome.
T40. Non-Traditional Stable Isotope Fractionation at Extreme
Conditions: In Honor of Anat Shahar, 2016 MSA Awardee
Cosponsors: Mineralogical Society of America; GSA Mineralogy,
Geochemistry, Petrology, and Volcanology Division
Disciplines: Geochemistry, Petrology, Igneous, Planetary Geology
Advocates: Edward Young; Craig Manning
This session is devoted to the continuing development of non-
traditional stable isotope systems as tracers of planet formation,
differentiation, and subsequent evolution. Studies of stable isotope
fractionation applicable to mantle geochemistry, igneous processes,
and planetary interiors are appropriate.
T41. pXRF in the Geosciences: Applications to Environmental,
Regional, and Exploration Geology
Cosponsors: GSA Environmental and Engineering Geology
Division; GSA Sedimentary Geology Division; GSA Quaternary
Geology and Geomorphology Division; GSA Mineralogy,
Geochemistry, Petrology, and Volcanology Division; GSA Geology
and Health Division; GSA Limnogeology Division
Disciplines: Geochemistry, Environmental Geoscience,
Economic Geology
Advocates: Lawrence D. Lemke; Ross D. Knight; Samuel Mutiti;
Bruce Kjarsgaard
Significant advances in portable X-ray fluorescence spectrom-
etry during the past decade provide a cost-effective tool for the
rapid generation of geochemical data. This session will assemble
presentations on pXRF applications, including environmental
studies, chemostratigraphy, and mineral deposit exploration.
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