气候变化领域集成服务门户(CCPortal): Widespread early Holocene deglaciation; Washington Land; northwest Greenland

CCPortal

DOI	10.1016/j.quascirev.2020.106181
	Widespread early Holocene deglaciation; Washington Land; northwest Greenland
	Ceperley E.G.; Marcott S.A.; Reusche M.M.; Barth A.M.; Mix A.C.; Brook E.J.; Caffee M.
发表日期	2020
ISSN	0277-3791
卷号	231
英文摘要	Constraining the Greenland Ice Sheet (GIS) response to past climate change is imperative for understanding modern ice sheet sensitivity to rising temperatures. In this study, we investigate the response of the GIS to warming during the last deglaciation across the currently ice-free area of Washington Land in northwest Greenland. We apply 10Be cosmogenic surface exposure dating to glacially-transported boulders deposited across the landscape, the interpretation of the dates offering insight into GIS retreat after the Last Glacial Maximum. We find that the northwestern sector of the GIS sustained full ice cover across Washington Land until ∼11 ka, then began thinning, with widespread ice retreat culminating by 8.5 ± 1.1 ka. The record of our new exposure ages indicates that deglaciation occurred 2–3 ka after abrupt warming at the end of the Younger Dryas cold period, which suggests a delayed response of the GIS to this regional warming. © 2020 Elsevier Ltd
英文关键词	Deglaciation; Geochronology; Greenland ice sheet; Surface exposure dating
语种	英语
scopus关键词	Climate change; Geochronology; Glacial geology; Glaciers; Deglaciations; Delayed response; Greenland Ice Sheet; Last deglaciation; Last Glacial Maximum; Regional warming; Rising temperatures; Surface exposure dating; Ice; climate change; dating method; deglaciation; geochronology; GIS; Holocene; ice cover; ice retreat; Last Glacial Maximum; Younger Dryas; Arctic; Greenland; Greenland Ice Sheet; Washington
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151567
作者单位	Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St., Madison, WI 53706, United States; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 101 SW 26th, St., Corvallis, OR 97331, United States; Department of Physics and Astronomy, Purdue University, 525 Northwestern Ave, West Lafayette, IN 47907, United States; Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Lafayette St., West Lafayette, IN 47907, United States
推荐引用方式 GB/T 7714	Ceperley E.G.,Marcott S.A.,Reusche M.M.,et al. Widespread early Holocene deglaciation; Washington Land; northwest Greenland[J],2020,231.
APA	Ceperley E.G..,Marcott S.A..,Reusche M.M..,Barth A.M..,Mix A.C..,...&Caffee M..(2020).Widespread early Holocene deglaciation; Washington Land; northwest Greenland.Quaternary Science Reviews,231.
MLA	Ceperley E.G.,et al."Widespread early Holocene deglaciation; Washington Land; northwest Greenland".Quaternary Science Reviews 231(2020).