Geomagnetic Modulation of the 36 Cl Flux in the GRIP Ice Core, Greenland-Reference-Cited by-同舟云学术

Geomagnetic Modulation of the 36 Cl Flux in the GRIP Ice Core, Greenland

Published:1998-02-27 Issue:5355 Volume:279 Page:1330-1332
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Baumgartner S.¹²³,Beer J.¹²³,Masarik J.¹²³,Wagner G.¹²³,Meynadier L.¹²³,Synal H.-A.¹²³

Affiliation:

1. S. Baumgartner, J. Beer, J. Masarik, G. Wagner, Environmental Physics, Swiss Federal Institute of Science and Technology, CH-8600 Dübendorf, Switzerland.

2. L. Meynadier, Laboratoire de Geochimie et Cosmochimie, CNRS 1758, Institut de Physique du Globe de Paris, 4 place Jussieu, F-75252 Paris Cedex 5, France.

3. H.-A. Synal, Paul Scherrer Institut, c/o Eidgenössische Technische Hochschule Hönggerberg, CH-8093 Zürich, Switzerland.

Abstract

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 Core Project (GRIP) ice core agree well with a production rate calculation based on a paleomagnetic reconstruction for the past 100,000 years over both long- 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 low geomagnetic field intensity.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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