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A warm and poorly ventilated deep Arctic Mediterranean during the last glacial period

Thornalley, David J. R.; Bauch, H A; Gebbie, G; Guo, W; Ziegler, Martin; Bernasconi, Stefano M.; Barker, S; Skinner, L. C.; Yu, Jimin


Changes in the formation of dense water in the Arctic Ocean and Nordic Seas [the “Arctic Mediterranean” (AM)] probably contributed to the altered climate of the last glacial period. We examined past changes in AM circulation by reconstructing radiocarbon ventilation ages of the deep Nordic Seas over the past 30,000 years. Our results show that the glacial deep AM was extremely poorly ventilated (ventilation ages of up to 10,000 years). Subsequent episodic overflow of aged water into the...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Science
DOI: 10.1126/science.aaa9554


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