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Radiogenic argon loss from biotites in whole rock heating experiments

Authors
Journal
Geochimica et Cosmochimica Acta
0016-7037
Publisher
Elsevier
Publication Date
Volume
35
Issue
1
Identifiers
DOI: 10.1016/0016-7037(71)90107-4

Abstract

Abstract Upon heating in nitrogen, both the radiogenic argon content and d 001 for biotite decrease and reach a constant value within 10 days. Biotites from heated whole rocks lose less argon than heated biotite separates, although they have the same decrease in d 001. Biotites from whole rocks heated in air have a greater decrease in d 001 and less loss of argon than those heated in nitrogen.

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