Grenville Turner

English geochronologist

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In dating: Potassium–argon methods
Merrihue and English geochronologist Grenville Turner in 1966. In this technique, known as the argon-40–argon-39 method, both parent and daughter can be determined in the mass spectrometer as some of the potassium atoms in the sample are first converted to argon-39 in a nuclear reactor. In this way, the…
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