The Determination of Cooling Rates Based on the Oxygen Isotope Systematics of Igneous Rocks

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The principal investigator will investigate the hypothesis that a correlation exists between the measured oxygen isotope fractionations among coexisting minerals in felsic igneous rocks and cooling rate of the rocks as determined by 40Ar/39Ar studies. Samples will be studied from both fast- and slow-cooling bodies. If successful, the resulting data would also provide a valuable new tool for the determination of cooling and uplift rates in orogenic terranes.