Climate Records Covering the Last Deglaciation

The oxygen-18/oxygen-16 ratio of molecular oxygen trapped in ice cores provides a time-stratigraphic marker for transferring the absolute chronology for the Greenland Ice Sheet Project (GISP) II ice core to the Vostok and Byrd ice cores in Antarctica. Comparison of the climate records from these cor...

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Bibliographic Details
Published in:Science
Main Authors: Sowers, Todd, Bender, Michael
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1995
Subjects:
Byrd
Greenland
Antarc*
Antarctica
GISP
Greenland Ice Sheet Project
ice core
Ice Sheet
Online Access:http://dx.doi.org/10.1126/science.269.5221.210
https://www.science.org/doi/pdf/10.1126/science.269.5221.210
Description
Summary:The oxygen-18/oxygen-16 ratio of molecular oxygen trapped in ice cores provides a time-stratigraphic marker for transferring the absolute chronology for the Greenland Ice Sheet Project (GISP) II ice core to the Vostok and Byrd ice cores in Antarctica. Comparison of the climate records from these cores suggests that, near the beginning of the last deglaciation, warming in Antarctica began approximately 3000 years before the onset of the warm Bølling period in Greenland. Atmospheric carbon dioxide and methane concentrations began to rise 2000 to 3000 years before the warming began in Greenland and must have contributed to deglaciation and warming of temperate and boreal regions in the Northern Hemisphere.

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