Title: KAr isochron method and initial argon ratios
Abstract: 40Ar36Ar versus40K36Ar isochron plots of 3 sets of discordant KAr age data yielded concordant isochrons with different initial40Ar36Ar ratios. These results indicate that (1) the initial40Ar36Ar ratio was homogeneous within each set of samples but not always equal to the present atmospheric argon ratio, (2) the standard method of non-radiogenic argon correction is, therefore, not always adequate (3) this isochron method can yield more meaningful ages and (4) excess argon can be due to high initial40Ar36Ar ratio.
Publication Year: 1970
Publication Date: 1970-03-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 47
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