Ice Sheet and Solid Earth Influences on Far-Field Sea-Level Histories

Previous predictions of sea-level change subsequent to the last glacial maximum show significant, systematic discrepancies between observations at Tahiti, Huon Peninsula, and Sunda Shelf during Lateglacial time (∼14,000 to 9000 calibrated years before the present). We demonstrate that a model of gla...

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Bibliographic Details
Published in:Science
Main Authors: Bassett, Sophie E., Milne, Glenn A., Mitrovica, Jerry X., Clark, Peter U.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2005
Subjects:
Antarctic
Huon
Sunda
The Antarctic
Antarc*
Ice Sheet
Online Access:http://dx.doi.org/10.1126/science.1111575
https://www.science.org/doi/pdf/10.1126/science.1111575
Description
Summary:Previous predictions of sea-level change subsequent to the last glacial maximum show significant, systematic discrepancies between observations at Tahiti, Huon Peninsula, and Sunda Shelf during Lateglacial time (∼14,000 to 9000 calibrated years before the present). We demonstrate that a model of glacial isostatic adjustment characterized by both a high-viscosity lower mantle (4 × 10 22 Pa s) and a large contribution from the Antarctic ice sheet to meltwater pulse IA (∼15-meters eustatic equivalent) resolves these discrepancies. This result supports arguments that an early and rapid Antarctic deglaciation contributed to a sequence of climatic events that ended the most recent glacial period of the current ice age.

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