Journal
GEOCHEMICAL JOURNAL
Volume 47, Issue 2, Pages 107-117Publisher
GEOCHEMICAL SOC JAPAN
DOI: 10.2343/geochemj.2.0231
Keywords
Patagonian Ice Sheet; Termination I; melting history; Al2O3 flux; marine sediments
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Funding
- Japan Society for the Promotion of Science (JSPS) through the Funding Program for Next Generation World-Leading Researchers (NEXT Program) [GR031]
- Council for Science and Technology Policy (CSTP)
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To investigate the melting history of the Patagonian Ice Sheet (PIS) during the last deglaciation, we reconstructed Al2O3 flux in sediments from the Magellanes fjord (53 degrees S) and southern Patagonia (55 degrees S: Drake Passage) over the past 12 and 31 kiloyears (kyr), respectively. We confirm that the melting history of the PIS is recorded as changes in sedimentological signals and find that the melting ceased between similar to 10 and 8 Calendar kyr before present (cal kyr BP). The timing of major melting events of the PIS was similar to that of the Northern Hemisphere ice sheets.
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