United State-China Scientific Cooperative Project: A Petrotectonic Study of Intracratonal Blueschist and EclogiteBelts in Central China

主要调查人员将与来自加州大学圣巴巴拉分校、北京大学中央研究院和湖北、安徽省地质矿产局的科学家合作，研究中华人民共和国中国的高级变质岩。目的是绘制中国中部的几个变质带，深入研究那里的高压岩石的矿物学，圈定矿物共生体和岩石的压力-温度-时间路径，建立几个关键岩石单元的地质年龄，并将其与火成岩和构造特征联系起来。这项研究将有助于更好地理解大陆地壳是如何俯冲到地幔深处，然后又被挖掘出来的。

The principal investigators will study high-grade metamorphic rocks in the People's Republic of China in collaboration with scientists from the University of California at Santa Barbara, the Academia Sinica of Peking University and the Provincial Bureau of Geology and Mineral Resources from Hubei and Anhui. The objectives are to map several metamorphic belts in central China, to thoroughly study the mineralogy of the high-pressure rocks there, to delineate mineral parageneses and the pressure-temperature-time paths of the rocks, to establish geologic ages for the several critical rock units, and to relate these to igneous and tectonic features. The study will lead to a better understanding of how continental crust was subducted to mantle depths, and later exhumed.