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DOI	10.1016/j.gloplacha.2010.03.005
	Late Miocene ice sheet elevation in the Grove Mountains, East Antarctica, inferred from cosmogenic Ne-21-Be-10-Al-26
	Kong, Ping; Huang, Feixin; Liu, Xiaohan; Fink, David; Ding, Lin; Lai, Qingzhou
通讯作者	Kong, P (通讯作者)
发表日期	2010
ISSN	0921-8181
起始页码	50
结束页码	54
卷号	72 期号:1-2
英文摘要	The Grove Mountains, lying in the interior of East Antarctica, consist of 64 nunataks. Geomorphic characteristics of the nunataks suggest that past ice sheet elevations have overtopped the summits of the Grove Mountains. Cosmogenic Ne-21, Be-10 and Al-26 dating yields surface exposure ages of five bedrock samples taken from the crest of Mount Harding, a typical nunatak in the Grove Mountains. Using multi-nuclide fitting, we have calculated the time that the ice sheet retreated below the crest of Mount Harding; all data point to the late Miocene, similar to 6.3 Ma ago. The results provide the first land-based evidence of the elevation of the East Antarctic Ice Sheet in the Grove Mountains in Late Miocene, which reached 2300 m, 200 m higher than the current ice sheet level. The higher than current ice sheet elevations during the late Miocene together with contemporaneously higher temperatures in the Southern Ocean suggest that moisture transport plays an important role in ice sheet expansion in the interior of East Antarctica. (C) 2010 Elsevier B.V. All rights reserved.
关键词	NUCLIDE APPROACH SOUTHERN-OCEAN HALF-LIFE BE-10 EROSION AL-26 AGE PLIOCENE HISTORY GLACIATION
英文关键词	exposure age; cosmogenic nuclide; Grove Mountains; Antarctica; Late Miocene
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000279889600006
来源期刊	GLOBAL AND PLANETARY CHANGE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257778
推荐引用方式 GB/T 7714	Kong, Ping,Huang, Feixin,Liu, Xiaohan,et al. Late Miocene ice sheet elevation in the Grove Mountains, East Antarctica, inferred from cosmogenic Ne-21-Be-10-Al-26[J]. 中国科学院青藏高原研究所,2010,72(1-2).
APA	Kong, Ping,Huang, Feixin,Liu, Xiaohan,Fink, David,Ding, Lin,&Lai, Qingzhou.(2010).Late Miocene ice sheet elevation in the Grove Mountains, East Antarctica, inferred from cosmogenic Ne-21-Be-10-Al-26.GLOBAL AND PLANETARY CHANGE,72(1-2).
MLA	Kong, Ping,et al."Late Miocene ice sheet elevation in the Grove Mountains, East Antarctica, inferred from cosmogenic Ne-21-Be-10-Al-26".GLOBAL AND PLANETARY CHANGE 72.1-2(2010).