Topical Sessions
Technical Program Schedule
These sessions are topically focused, with a mix of invited and volunteered papers. They are sorted by primary discipline, but most sessions are designed to be interdisciplinary. Related disciplines are listed with each session.
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- T4. Geochemical Proxies for Ancient Ocean Chemistry: Implications for Links Between Ocean Chemistry, Plate Tectonics, Sea Level, and Climate throughout the Late Precambrian and Phanerozoic
Cara K. Thompson, Troy Rasbury - This topical session will feature geochemical proxy studies that link ancient ocean chemistry with changes in climate state, sea level, plate tectonics, and the biosphere. Topics include isotope, major, trace, and rare earth element studies.
- Geochemistry | Paleoclimatology/Paleoceanography
- T11. New Developments and Applications in Sclerochronology
GSA Archaeological Geology Division; Paleontological Society
C. Fred T. Andrus, Donna Surge - Sclerochronology, the study of physical and chemical records in accretionary skeletons, is increasingly important in several disciplines. This session will highlight new geochemical methods, species validation studies, and applications in archaeology, ecology, paleoclimatology, and paleontology.
- Archaeological Geology | Paleoclimatology/Paleoceanography | Paleontology, Paleoecology/Taphonomy
- T16. Cenozoic Ostracode Research: Developments in Paleoclimatology, Paleohydrology, Paleoecology, and Phylogenetics
GSA Quaternary Geology and Geomorphology Division; Paleontological Society; GSA Limnogeology Division
Alison J. Smith, Dave Horne, B. Brandon Curry - This session will focus on novel approaches in ostracode research (marine and non-marine) related to Cenozoic paleoclimate, paleohydrology, phylogenetics, and geochemistry. Highlights will include the PETM, Miocene and Pliocene warmth, and Quaternary environmental change.
- Quaternary Geology | Paleoclimatology/Paleoceanography | Paleontology, Phylogenetic/Morphological Patterns
- T19. Recent Sea-Level Change in a Late Holocene Context
GSA Quaternary Geology and Geomorphology Division
Benjamin Horton, Andrew Kemp - Regional sea-level records from proxy reconstructions and tide-gauges provide appropriate and necessary context for current and projected rates of rise. Such records constrain the timing and magnitude of sea-level changes and their relationship to climate.
- Quaternary Geology | Paleoclimatology/Paleoceanography | Marine/Coastal Science
- T22. Using Buried Soils to Reconstruct Past Climates: Opportunities and Considerations
GSA Quaternary Geology and Geomorphology Division; GSA Archaeological Geology Division; SEPM (Society for Sedimentary Geology)
Holly A. Meier, Jessica LB Monson, Ashley B. Zung - This session aims to (1) further investigate "soils as archives of past climates" using preserved pedogenic features, and (2) evaluate developed proxies for modern and ancient systems.
- Quaternary Geology | Paleoclimatology/Paleoceanography | Geochemistry
- T110. New Perspectives on Modern and Ancient Rift Lakes
GSA Limnogeology Division
David B. Finkelstein, Elizabeth Gierlowski-Kordesch - This session explores paleoclimate, geomicrobiology, geophysical, and geochemical signatures of modern and ancient rift lake environments and sediments. Topics will include geophysical, geochemical, and isotopic signatures of waters, microbes, and mineral facies.
- Limnogeology | Paleoclimatology/Paleoceanography | Geochemistry
- T118. Paleotempestology: Proxy Record Development and Climate Forcing Mechanisms
GSA Quaternary Geology and Geomorphology Division; International Geoscience Programme (IGCP) 588—Preparing for Coastal Change; GSA International Section
Andrea D. Hawkes, Jon Woodruff, Daria Nikitina - We will explore new findings in paleotempestology record development, which identifies the timing and frequency/intensity of tropical cyclones. We welcome studies highlighting forcing mechanisms responsible for past/future cyclone variability. Integrated field, lab, and model analyses are encouraged.
- Marine/Coastal Science | Geomorphology | Paleoclimatology/Paleoceanography
- T119. The Role of Microfossils in Environmental Monitoring
SEPM (Society for Sedimentary Geology); Paleontological Society; GSA Geobiology & Geomicrobiology Division; GSA Geology and Society Division
Elizabeth A. Nesbitt, Ruth A. Martin - This session focuses on the use of micro-organisms, living or fossil, as indicators of environmental stress, including pollution, hypoxia, acidification, and climate change in coastal and estuarine settings.
- Marine/Coastal Science | Environmental Geoscience | Paleoclimatology/Paleoceanography
- T121. Rapid Sea-Level Rise and Its Impacts: Past, Present, and Future
GSA Quaternary Geology and Geomorphology Division; Association of Environmental & Engineering Geologists; GSA Environmental and Engineering Geology Division; GSA Geology and Society Division; GSA Hydrogeology Division; GSA Sedimentary Geology Division; National Association of Geoscience Teachers; GSA International Section
George T. Stone, Michael E. Mann, Stanley R. Riggs, Andrew M. Buddington - This session convenes leading scientists from diverse disciplines to present current research on one of the most compelling issues in the geosciences: rapid sea-level rise and the attendant threat to coastlines worldwide.
- Marine/Coastal Science | Paleoclimatology/Paleoceanography | Environmental Geoscience
- T122. Fossils Plants as Paleoenvironmental Recorders
Paleontological Society; GSA Geobiology & Geomicrobiology Division
Dana L. Royer, Daniel J. Peppe - There are a growing number of tools for reconstructing paleoenvironments using fossil plants, ranging from isotopes to anatomy. This session will highlight paleobotanical proxy development and fossil case studies for reconstructing paleoclimate and paleoecology.
- Paleoclimatology/Paleoceanography | Paleontology, Paleoecology/Taphonomy | Geochemistry, Organic
- T123. Biotracers, Mineralogical and Geochemical Properties of Circum-Arctic Sediment Sources, and Runoff toward the Arctic Ocean
D.A. Darby - Reviews and new information about the mineralogy, geochemistry, and biotracer content of sediment sources and abstracts on circum-Arctic continental erosion are encouraged for this session on the prospect of future Arctic IODP drilling.
- Paleoclimatology/Paleoceanography | Sediments, Clastic | Marine/Coastal Science
- T124. Oceans and Climates through Earth History: From Proxy Reconstructions to Model Assessments (Posters)
Cushman Foundation; Geochemical Society; Paleontological Society
Miriam E. Katz, Beth A. Christensen, David P. Gillikin, Alicia C.M. Kahn - This session brings together proxy and modeling studies to improve our understanding of rapid ocean and climate events, and shifts between long-term climate states, within the context of normal climate variability throughout Earth's history.
- Paleoclimatology/Paleoceanography | Geochemistry | Paleontology, Diversity, Extinction, Origination
- T125. Quantitative Cenozoic Terrestrial Climate Reconstructions in the Northern Hemisphere: Evidence from Paleo-Proxies and Beyond
Paleontological Society
Yusheng (Christopher) Liu, Torsten Utescher - The session will address the Cenozoic terrestrial climate reconstructions in the Northern Hemisphere by integrating evidence from various paleo-proxies and modeling experiments.
- Paleoclimatology/Paleoceanography | Paleontology, Paleoecology/Taphonomy | Paleontology, Diversity, Extinction, Origination
- T126. Late Triassic Climates, Environments, and Life on Pangaean North America
GSA Sedimentary Geology Division
S.I. Dworkin, Lee Nordt, Stacy Atchley - This session evaluates the state of research concerning Late Triassic environmental conditions preceding the Tr/Jr mass extinction. Disciplines reviewed include paleogeography, paleobotany, paleontology, palynology, paleopedology, stratigraphy, and paleoceanographic conditions.
- Paleoclimatology/Paleoceanography | Stratigraphy | Geochemistry
- T127. Terrestrial Proxies of Paleoclimate and Paleoenvironment in Deep Time
GSA Sedimentary Geology Division; SEPM (Society for Sedimentary Geology); Geochemical Society; GSA Limnogeology Division
Lauren A. Michel, Jennifer M. Cotton, Ethan Hyland - This session focuses on advances in new proxy techniques as well as reconstructions of past environmental and climatic conditions for the terrestrial ecosystems as analogs for the impacts of future anthropogenically driven climate change.
- Paleoclimatology/Paleoceanography | Geochemistry | Sediments, Clastic
- T140. The Big Kill: Paleobiological, Geochemical, and Modeling Studies of the Permian–Triassic Boundary Mass Extinction
GSA Sedimentary Geology Division; Paleontological Society; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geobiology & Geomicrobiology Division
Arne M.E. Winguth, Thomas J. Algeo, David Bottjer - This session features recent research of sedimentary, geochemical, paleobiological, and paleogeographical records and modeling studies to improve the understanding of the mass extinction near the Permian–Triassic boundary.
- Paleontology, Diversity, Extinction, Origination | Paleoclimatology/Paleoceanography | Geochemistry
- T141. Pantropical Paleontology of the Marine Cenozoic
Paleontological Society
Paul D. Taylor, Kenneth G. Johnson, Willem Renema - The evolution of high marine biodiversity in the tropics is poorly understood. Recent research in the Caribbean, Mediterranean and Indo-Pacific makes it opportune to discuss new findings and ways forward.
- Paleontology, Diversity, Extinction, Origination | Paleoclimatology/Paleoceanography | Paleontology, Paleoecology/Taphonomy
- T162. Integrative Studies of Sedimentary Marine and Fluvial Cretaceous Deposits along the Western Margin of the North Atlantic Basin (Posters)
Paleontological Society; Eastern Section SEPM (Society for Sedimentary Geology)
William Burleigh Harris, Jean M. Self-Trail - This session will bring together scientists with a variety of backgrounds to discuss how Cretaceous interactions among the oceans, biosphere, and climate affected deposition and sedimentation on the western edge of the Atlantic Continental Margin.
- Stratigraphy | Paleontology, Biogeography/Biostratigraphy | Paleoclimatology/Paleoceanography
- T166. Controls on Terrestrial Dispersed Organic Carbon d13C Values from Diagenesis to Climate
Geochemical Society; GSA Limnogeology Division
Brady Z. Foreman, A. Baczynski, Clement Bataille, Aaron Wood - We seek presentations that evaluate potential causes for d13C variability in dispersed organic carbon. The sources of variation can include sample preparation, diagenetic alteration, facies dependence, vegetation regime, atmospheric CO2, and local environmental conditions.
- Stratigraphy | Geochemistry, Organic | Paleoclimatology/Paleoceanography
- T169. Cyclicity and Hierarchy in the Clastic Stratigraphic Record
GSA International Section
Brian W. Romans, Jacob A. Covault, Stephen M. Hubbard - The documentation of cyclical and hierarchical patterns in the stratigraphic record has led to interpretations of systematic forcings and apparently improved predictability. This session will explore these themes at a range of scales.
- Stratigraphy | Sediments, Clastic | Paleoclimatology/Paleoceanography


