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GSA 2020 ANNUAL MEETING
together those working on Paleozoic glaciations in disparate T51. Oceans and Climates through Earth History:
regions and eras using a variety of methodologies. From Proxy Reconstructions to Model Assessments
(Posters)
T47. Case Studies of Diagenesis, Paragenesis, and Cosponsors: Cushman Foundation; Geochemical Society;
Geochemical Transformations of Sedimentary Strata Paleontological Society; GSA Marine and Coastal Geoscience
Cosponsors: GSA Mineralogy, Geochemistry, Petrology, and Division; GSA Quaternary Geology and Geomorphology
Volcanology Division; GSA Soils and Soil Processes Division; Division; GSA Sedimentary Geology Division
GSA Sedimentary Geology Division; Geochemical Society Disciplines: Paleoclimatology/Paleoceanography, Geochemistry,
Disciplines: Sediments, Clastic, Soils, Geochemistry Paleontology, Biogeography/Biostratigraphy
Advocates: Lauren A. Michel; Neil J. Tabor; Julia A. McIntosh Advocates: Chiara Borrelli; Megan K. Fung; Miriam E. Katz
This session will highlight research that considers the roles of This session brings together proxy, modeling, and proxy devel-
burial, diagenesis, and lithification and its chemical imprint upon opment studies to improve our understanding of rapid ocean and
primary minerals formed around Earth’s near surface and inter- climate events, and shifts between long-term climate/ocean states,
pretations of paleoenvironments and paleoclimates. within the context of normal variability throughout Earth history.
T48. Insights into Cordilleran Tectonics and T52. Impacts of Volcanism on Global Climate and
Magmatism from the Sedimentary Record Oceans—Drivers of Mass Extinctions through the
Cosponsors: GSA Structural Geology and Tectonics Division; Phanerozoic
GSA Sedimentary Geology Division Cosponsors: GSA Mineralogy, Geochemistry, Petrology, and
Disciplines: Sediments, Clastic, Tectonics/Tectonophysics, Volcanology Division; GSA Geobiology and Geomicrobiology
Geochronology Division; GSA Marine and Coastal Geoscience Division;
Advocates: Richard M. Gaschnig; Kathleen Surpless U.S. Paleontology and Sedimentology; Geochemical Society;
This session aims to highlight new insights into the development Paleontological Society
and evolution of the North American Cordillera from the study of Disciplines: Paleoclimatology/Paleoceanography, Geochemistry,
the sedimentary record, with particular emphasis on provenance. Volcanology
Advocates: Stephen E. Grasby; Gerta Keller; David P.G. Bond;
T49. Refining Predictive Models of Modern and Thierry Adatte
Ancient Source-to-Sink Systems This session examines how major volcanic eruptions impact
Cosponsors: GSA Sedimentary Geology Division; GSA Structural global environments and biogeochemical cycles, driving mass
Geology and Tectonics Division; GSA Geoinformatics and Data extinction and ocean anoxic events throughout the Phanerozoic,
Science Division; GSA Karst Division and fingerprints such eruptions leave in the sedimentary record.
Disciplines: Sediments, Clastic, Tectonics/Tectonophysics,
Geochronology T53. Cushman Symposium: Perspectives—Cushman
Advocates: Eugene Szymanski; Glenn R. Sharman; Matthew A. Foundation 70 Years, Foraminifera 600 Million
Malkowski Cosponsors: Cushman Foundation; GSA History and Philosophy
This session investigates the current state of source-to-sink mod- of Geology Division; Paleontological Research Institution;
eling, the innovative technical approaches that improve model accu- Paleontological Society; SEPM (Society for Sedimentary
racy, and the knowledge gaps that currently prevent the creation of Geology); GSA Sedimentary Geology Division
truly predictive frameworks in modern and ancient systems. Disciplines: Paleoclimatology/Paleoceanography, Paleontology,
Biogeography/Biostratigraphy, History and Philosophy of Geology
PALEOCLIMATOLOGY/PALEOCEANOGRAPHY Advocates: Pamela Buzas-Stephens; Brian Huber
For the 70th anniversary of the Cushman Foundation for
T50. Interactions between Life, Tectonics, Climate, Foraminiferal Research, the session showcases the latest in fora-
and Sedimentary Systems at the Neoproterozoic– miniferal research and application. Speakers and historical
Early Cambrian Transition accounts of the society tie the program together.
Cosponsors: GSA Sedimentary Geology Division; GSA
Geochronology Division; GSA Mineralogy, Geochemistry, T54. Ice-Sheet and Sea-Ice Paleo-Reconstructions
Petrology, and Volcanology Division; GSA Geobiology and from the Arctic, Antarctica, and the Southern Ocean
Geomicrobiology Division; Paleontological Society Cosponsors: GSA Marine and Coastal Geoscience Division;
Disciplines: Paleoclimatology/Paleoceanography, Geochemistry, GSA Sedimentary Geology Division; GSA Quaternary Geology
Paleontology, Paleoecology/Taphonomy and Geomorphology Division
Advocates: Sarah M. Giles; Marjorie Cantine Disciplines: Paleoclimatology/Paleoceanography, Marine/Coastal
The Neoproterozoic–Early Cambrian transition was a dynamic Science, Sediments, Clastic
interval in Earth history that has been intensively studied with Advocates: Sandra Passchier; Suzanne O’Connell; Victoria L.
innovative techniques and approaches. What do we know in the Peck; Kristen St. John
year 2020? Where should new multidisciplinary research focus? This session covers paleo-environmental reconstructions from
ocean drilling, coring, and geophysical surveys of glacially influ-
enced settings, including sedimentary processes of modern glacial

24 GSA Today | May 2020