气候变化领域集成服务门户(CCPortal): Millennial-scale instability of the Antarctic Ice Sheet during the last glaciation

CCPortal

DOI	10.1126/science.288.5472.1815
	Millennial-scale instability of the Antarctic Ice Sheet during the last glaciation
	Kanfoush S.L.; Hodell D.A.; Charles C.D.; Guilderson T.P.; Graham Mortyn P.; Ninnemann U.S.
发表日期	2000
ISSN	0036-8075
起始页码	1815
结束页码	1818
卷号	288 期号:5472
英文摘要	Records of ice-rafted detritus (IRD) concentration in deep-sea cores from the southeast Atlantic Ocean reveal millennial-scale pulses of IRD delivery between 20,000 and 74,000 years ago. Prominent IRD layers correlate across the Polar Frontal Zone, suggesting episodes of Antarctic Ice Sheet instability. Carbon isotopes (δ13C) of benthic foraminifers, a proxy of deepwater circulation, reveal that South Atlantic IRD events coincided with strong increases in North Atlantic Deep Water (NADW) production and inferred warming (interstadials) in the high-latitude North Atlantic. Sea level rise or increased NADW production associated with strong interstadials may have resulted in destabilization of grounded ice shelves and possible surging in the Weddell Sea region of West Antarctica.
英文关键词	ice; glacier surge; ice sheet; ice-rafted debris; instability; interstadial; last glaciation; North Atlantic Deep Water; Quaternary; sea level change; Antarctica; article; geography; geology; molecular stability; priority journal; Antarctica; Atlantic Ocean
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244212
作者单位	Department of Geological Sciences, University of Florida, Gainesville, FL 32611, United States; Scripps Institution of Oceanography, University of California, San Diego, CA 92093, United States; Lawrence Livermore Natl. Laboratory, Livermore, CA 94550, United States; Dept. of Earth and Planet. Sciences, Harvard University, Cambridge, MA 02138, United States; Borehole Research Group, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States
推荐引用方式 GB/T 7714	Kanfoush S.L.,Hodell D.A.,Charles C.D.,et al. Millennial-scale instability of the Antarctic Ice Sheet during the last glaciation[J],2000,288(5472).
APA	Kanfoush S.L.,Hodell D.A.,Charles C.D.,Guilderson T.P.,Graham Mortyn P.,&Ninnemann U.S..(2000).Millennial-scale instability of the Antarctic Ice Sheet during the last glaciation.Science,288(5472).
MLA	Kanfoush S.L.,et al."Millennial-scale instability of the Antarctic Ice Sheet during the last glaciation".Science 288.5472(2000).