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

首席研究员将研究长英质火成岩中共存矿物的氧同位素分异与40Ar/39Ar研究确定的岩石冷却速率之间存在相关性的假设。样品将从快速和慢速冷却体中进行研究。如果成功，所得到的数据也将为确定造山地体的冷却和隆起速率提供一个有价值的新工具。

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.