10Be dating reveals early-middle Holocene age of the Drygalski Moraines in central West Greenland
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- 作者：Sandra L. Cronauera ; Jason P. Brinera ; ; Samuel E. Kelleya ; 1 ; Susan R.H. Zimmermanb ; Mathieu Morlighemc
- 关键词：Cosmogenic nuclide exposure dating ; Greenland Ice Sheet ; Proglacial-threshold lake ; Holocene
- 刊名：Quaternary Science Reviews
- 出版年：2016
- 出版时间：1 September 2016
- 年：2016
- 卷：147
- 期：Complete
- 页码：59-68
- 全文大小：3520 K
文摘
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This study uses 10Be dating to determine the age of the Drygalski Moraines in central West Greenland.
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Three moraine crests have early Holocene ages and local deglaciation occurred at ∼9.9 ka.
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Lake sediment analysis constrains the Greenland Ice Sheet margin's minimum Holocene extent from ∼5.4 to ∼0.6 ka.
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The Greenland Ice Sheet margin remained within a few km of its present position from 9.9 to 5.4 ka, consistent with coastal paleoclimate records.