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25–28 OCTOBER • MONTRÉAL, QUÉBEC, CANADA
Disciplines: Quaternary Geology, Paleoclimatology/ Disciplines: Quaternary Geology, Geophysics/Geodynamics,
Paleoceanography, Geomorphology Engineering Geology
Advocates: Jessica R. Creveling; Natalya Gomez; Vivi Pedersen Advocates: Katrin Monecke; John E. Ebel
We encourage abstracts that address Pliocene–Holocene sea We seek contributions on paleoseismic investigations from eastern
level changes, ice sheet stability, and solid Earth and landscape North America as well as studies on regional active tectonics, earth-
adjustment to these changes. We welcome studies across a broad quake site response, and seismic hazard analysis. Abstracts that intro-
range of geological time/spatial scales and methods. duce new paleoseismological techniques are especially welcome.

T139. The Status of the Laurentide Ice Sheet during T143. Advances in Beringian Environments and
MIS-3 Paleoclimate during the Late Glacial and Early
Cosponsor: GSA Quaternary Geology and Geomorphology Holocene
Division Cosponsors: GSA Quaternary Geology and Geomorphology
Disciplines: Quaternary Geology, Paleoclimatology/ Division; GSA Limnogeology Division; GSA Geoarchaeology
Paleoceanography, Marine/Coastal Science Division; GSA Sedimentary Geology Division
Advocates: Gifford H. Miller; Michel Lamothe; Michel Parent; Disciplines: Quaternary Geology, Limnogeology, Geoarchaeology
Martin Roy Advocates: Lesleigh Anderson; Ben Gaglioti; Mark Abbott
The configuration and volume of the Laurentide Ice Sheet dur- In light of recent advances, we seek presentations on new tech-
ing MIS-3 remain debated, with strong implications for sea level niques, study locations, and insights into the paleoenvironments
and the status of the Antarctic Ice Sheet. We encourage contribu- and climate across Beringia during the late glacial and early
tions that help resolves these uncertainties. Holocene period.

T140. Wildfire as an Earth System Process— T144. The Ring of Ice: North Atlantic Deglacial
Ancient and Modern Chronologies Following the Last Glacial Maximum
Cosponsors: GSA Quaternary Geology and Geomorphology Cosponsors: GSA Quaternary Geology and Geomorphology
Division; GSA Sedimentary Geology Division; GSA Geology and Division; GSA Geochronology Division; GSA Sedimentary
Society Division; GSA Environmental and Engineering Geology Geology Division; GSA Limnogeology Division
Division Disciplines: Quaternary Geology, Paleoclimatology/
Disciplines: Quaternary Geology, Environmental Geoscience, Paleoceanography, Geochronology
Geoscience and Public Policy Advocates: Christopher T. Halsted
Advocates: Andrew C. Scott; Ian J. Glasspool; Sarah J. Baker This session focuses on quantifying deglacial chronologies
The impact of fire on the biosphere and the role that mankind following the Last Glacial Maximum from ice sheets, ice caps,
is playing in altering the nature of fire systems, as well as that fire and valley glaciers surrounding the North Atlantic to allow better
is an essential element of how the Earth works will be addressed. understanding of paleoclimate change over time and ice-ocean-
atmosphere interactions.
T141. Three-Dimensional Geological
Mapping to Support Societal Development T145. From Hudson Bay to the Coastal Plain:
Cosponsors: GSA Quaternary Geology and Geomorphology Comparisons of Pre-LGM (Last Glacial Maximum)
Division; GSA Marine and Coastal Geoscience Division; GSA Quaternary Records in Glaciated and Unglaciated
Energy Geology Division; GSA Geophysics and Geodynamics North America
Division; GSA Environmental and Engineering Geology Division; Cosponsor: GSA Quaternary Geology and Geomorphology Division
GSA Geoinformatics and Data Science Division Disciplines: Quaternary Geology, Geomorphology
Disciplines: Quaternary Geology, Engineering Geology, Energy Advocates: David A. Grimley; Kathleen M. Farrell; Riley P.M.
Geology Mulligan
Advocates: Hazen A.J. Russell; Kelsey E. MacCormack; Brian J. This session will highlight pre–last glacial maximum
Todd; Oliver S. Boyd Quaternary events, depositional sequences, chronology, and
Three-dimensional geological modeling facilitates the commu- paleoenvironments from glaciated and unglaciated terrains in
nication of subsurface relationships and aids decision-making for North America. We envision topics ranging from glacial and
resources, groundwater, geotechnical, marine and coastal, and proglacial to fluvial and marine environments.
public safety applications. Contributions are welcome on 3D
modeling methodology, standards, and case studies. T146. Dynamics of the Laurentide Ice Sheet
Cosponsor: GSA Quaternary Geology and Geomorphology
T142. Techniques and Results of Paleoseismologi- Division
cal and Seismic Hazard Studies of the Stable Craton Disciplines: Quaternary Geology, Geomorphology, Limnogeology
of Eastern North America Advocates: Timothy G. Fisher; Randall Schaetzl
Cosponsors: GSA Quaternary Geology and Geomorphology We encourage papers and posters on the timing, extent, and
Division; GSA Geophysics and Geodynamics Division; dynamics of the Laurentide Ice Sheet. Presentations should focus
GSA Environmental and Engineering Geology Division; on build up to the LGM, LGM, and post-LGM events.
GSA Structural Geology and Tectonics Division

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