Holocene deglaciation of Marie Byrd Land, West Antarctica

被引:193
作者
Stone, JO
Balco, GA
Sugden, DE
Caffee, MW
Sass, LC
Cowdery, SG
Siddoway, C
机构
[1] Univ Washington, Quaternary Res Ctr, Seattle, WA 98195 USA
[2] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA
[3] Univ Edinburgh, Dept Geog, Edinburgh EH8 9XP, Midlothian, Scotland
[4] L397 Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA
[5] Colorado Coll, Dept Geol, Colorado Springs, CO 80903 USA
关键词
D O I
10.1126/science.1077998
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Surface exposure ages of glacial deposits in the Ford Ranges of western Marie Byrd Land indicate continuous thinning of the West Antarctic Ice Sheet by more than 700 meters near the coast throughout the past 10,000 years. Deglaciation lagged the disappearance of ice sheets in the Northern Hemisphere by thousands of years and may still be under way. These results provide further evidence that parts of the West Antarctic Ice Sheet are on a long-term trajectory of decline. West Antarctic melting contributed water to the oceans in the late Holocene and may continue to do so in the future.
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收藏
页码:99 / 102
页数:4
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