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A mid-European decadal isotope-climate record from 15,500 to 5,000 years B.P. (1999)

von Grafenstein, U. ; Erlenkeuser, H. ; Brauer, A. ; [et al.]

In: Science

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Publication Date: 2020-02-12

Description: Oxygen-isotope ratios of precipitation (δ18OP) inferred from deep-lake ostracods from the Ammersee (southern Germany) provide a climate record with decadal resolution. The record in detail shows many of the rapid climate shifts seen in central Greenland ice cores between 15,000 and 5000 years before the present (B.P.). Negative excursions in the estimated δ18OP from both of these records likely reflect short weakenings of the thermohaline circulation caused by episodic discharges of continental freshwater into the North Atlantic. Deviating millennial-scale trends, however, indicate that climate gradients between Europe and Greenland changed systematically, reflecting a gradual rearrangement of North Atlantic circulation during deglaciation.

Keywords: 550 - Earth sciences

Language: English

Type: info:eu-repo/semantics/article

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