Geomagnetic modulation of the 36Cl flux in the GRIP ice core, Greenland

被引：95

作者：

Baumgartner, S

Beer, J ^{[1
]}

Masarik, J

Wagner, G

Meynadier, L

Synal, HA

机构：

[1] Swiss Fed Inst Sci & Technol, CH-8600 Dubendorf, Switzerland

[2] Inst Phys Globe, CNRS, Lab Geochim & Cosmochim 1758, F-75252 Paris 5, France

[3] ETH Honggerberg, Paul Scherrer Inst, CH-8093 Zurich, Switzerland

来源：

SCIENCE | 1998年 / 279卷 / 5355期

关键词：

D O I：

10.1126/science.279.5355.1330

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：

Geomagnetic field strength is expected to affect the production rate of cosmogenic isotopes such as beryllium-10, carbon-14, or chlorine-36. Chlorine-36 data from the Greenland Ice Gore Project (GRIP) ice core agree well with a production rate calculation based on a paleomagnetic reconstruction for the past 100,000 years over both lane-and short-term variations, A chlorine-36 peak at 38,000 years ago previously found in the beryllium-10 record from the Vostok ice core can be explained by a period of law geomagnetic field intensity.

引用

页码：1330 / 1332

页数：3