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Characterization and calibration of 40 Ar/ 39 Ar dating standards

McDougall, Ian; Spell, Terry


Because 40Ar/39Ar ages are based on independent age determinations for standard minerals, it is critical that these standards be well characterized. This includes constraints both on the age of the standards themselves and the ages of the standards relative to one another. In an effort to better characterize standards in common use, we have intercalibrated five of these: the interlaboratory standards MMhb-1 hornblende, 92-176 Fish Canyon Tuff sanidine, and LP-6 biotite, along with two...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Chemical Geology
DOI: 10.1016/S0009-2541(03)00005-6


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