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Joint 69th Annual Southeastern / 55th Annual Northeastern Section Meeting - 2020

Paper No. 38-16
Presentation Time: 8:00 AM-12:00 PM

USING FORAMINIFERA TO CONSTRAIN GREENLAND ICE SHEET MELT DURING PAST PLEISTOCENE WARM PERIODS


PRABHAKAR, Maya, Geological Sciences, State University of New York at Buffalo, 126 Cooke Hall, University at Buffalo, North Campus, Buffalo, NY 14260, THOMAS, Elizabeth K., Department of Geology, University at Buffalo, 126 Cooke Hall, University at Buffalo, North Campus, Buffalo, NY 14260-4130, THIRUMALAI, Kaustubh, Department of Earth, Environmental and Planetary Sciences, Brown University, Box 1846 324 Brook Street, Providence, RI 02912; Geosciences, University of Arizona, Department of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721 and CLEMENS, Steven C., Department of Geological Sciences, Brown University, 324 Brook Street, Providence, RI 02912

Greenland’s ice is melting at an alarming rate. While there is direct evidence for periods where the Greenland Ice Sheet was much smaller than today, the timing of Greenland Ice Sheet melt during ancient warm periods is still poorly constrained. Foraminifera, surface-dwelling marine plankton, provide a means of studying melt events which exceed modern seasonal variation. Foraminifera 𝛿18O reflects surface ocean water 𝛿18O, which would have decreased in the surface ocean near the coast as the Greenland Ice Sheet melted during ancient warm periods. We produce a record of planktic foraminifera 𝛿18O of south Greenland from the mid- to late-Pleistocene, which will help us understand the dynamics of how the Greenland Ice Sheet may melt in modern and future warm periods.

Session No. 38--Booth# 46

T18. Undergraduate Research I (Posters)
Saturday, 21 March 2020: 8:00 AM-12:00 PM
Grand Ballroom A–D (Hyatt Regency Reston)
Geological Society of America Abstracts with Programs. Vol. 52, No. 2
doi: 10.1130/abs/2020SE-344566
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