(Table 1) Age determination of sediment core MD02-2551 ...

A leading hypothesis to explain abrupt climate change during the last glacial cycle calls on fluctuations in the margin of the North American Laurentide Ice Sheet (LIS), which may have routed fresh water between the Gulf of Mexico (GOM) and the North Atlantic, affecting North Atlantic Deep Water var...

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Bibliographic Details
Main Authors: Hill, Heather W, Flower, Benjamin P, Quinn, Terrence Michael, Hollander, David J, Guilderson, Thomas P
Format: Dataset
Language:English
Published: PANGAEA 2006
Subjects:
Laboratory code/label
DEPTH, sediment/rock
Age, dated
Age, dated standard error
Calendar age
Age, comment
Calypso Corer
Age, 14C AMS
Age, 14C calibrated
MD127
Marion Dufresne 1995
Antarc*
Antarctic
Greenland
Ice Sheet
North Atlantic Deep Water
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.834984
https://doi.pangaea.de/10.1594/PANGAEA.834984
Description
Summary:A leading hypothesis to explain abrupt climate change during the last glacial cycle calls on fluctuations in the margin of the North American Laurentide Ice Sheet (LIS), which may have routed fresh water between the Gulf of Mexico (GOM) and the North Atlantic, affecting North Atlantic Deep Water variability and regional climate. Paired measurements of d18O and Mg/Ca of foraminiferal calcite from GOM sediments reveal five episodes of LIS meltwater input from 28 to 45 thousand years ago (ka) that do not match the millennial-scale Dansgaard-Oeschger warmings recorded in Greenland ice. We suggest that summer melting of the LIS may occur during Antarctic warming and likely contributed to sea level variability during marine isotope stage 3. ... : Supplement to: Hill, Heather W; Flower, Benjamin P; Quinn, Terrence Michael; Hollander, David J; Guilderson, Thomas P (2006): Laurentide Ice Sheet meltwater and abrupt climate change during the last glaciation. Paleoceanography, 21(1), PA1006 ...

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