High geothermal heat row, basal melt, and the origin of rapid ice how in central Greenland

被引：215

作者：

Fahnestock, M ^{[1
]}

Abdalati, W

Joughin, I

Brozena, J

Gogineni, P

机构：

[1] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA

[2] NASA, Washington, DC 20546 USA

[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[4] USN, Res Lab, Washington, DC 20375 USA

[5] Univ Kansas, Remote Sensing Lab, Lawrence, KS 66045 USA

来源：

SCIENCE | 2001年 / 294卷 / 5550期

关键词：

D O I：

10.1126/science.1065370

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：

Age-depth relations from internal layering reveal a large region of rapid basal melting in Greenland. Melt is localized at the onset of rapid ice flow in the large ice stream that drains north off the summit dome and other areas in the northeast quadrant of the ice sheet. Locally, high melt rates indicate geothermal fluxes 15 to 30 times continental background. The southern limit of melt coincides with magnetic anomalies and topography that suggest a volcanic origin.

引用

页码：2338 / 2342

页数：5

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