Autor: Baumgartner, S.; Beer, J.; Masarik, J.; Wagner, G.; Meynadier, L.; Synal, H.-A.
Názov: Geomagnetic Modulation of the ³⁶Cl Flux
in the GRIP Ice Core, Greenland
Typ: publication
Dátum: 1998
Jazyk: en
Poznámka:
Abstrakt:
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.
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