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

See allHide authors and affiliations

Science  05 Aug 2005:
Vol. 309, Issue 5736, pp. 925-928
DOI: 10.1126/science.1111575

You are currently viewing the abstract.

View Full Text


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 × 1022 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.

View Full Text