COLLABORATIVE RESEARCH: Lateral Variations in the Timing and Nature of Metamorphism Associated with a Major Terrane Boundary in the NW Himalaya

主地幔逆冲位于巴基斯坦喜玛拉雅山的西北部，将北部的科伊斯坦岛弧地体与南部的印度板块分开，代表了印度河缝合带向西延伸至喜玛拉雅山西部。这个合作项目（与达特茅斯学院，EAR88-16929）的重点是研究与地块边界相关的变质作用，以建立压力-温度-时间路径和构造事件的辐射测定日期。利用这些技术获得的数据将被综合起来，对喜马拉雅和一般的挤压山带的构造-热模型进行重要的限制。

The Main Mantle Thrust, located in the northwestern Himalaya of Pakistan, separates the Kohistan island-arc terrane on the north from the Indian plate to the south, and represents the westward continuation of the Indus Suture zone into the western Himalaya. The focus of this collaborative project (with Dartmouth College, EAR88-16929) is to examine metamorphism associated with the terrane boundary to establish pressure- temperature-time paths and radiometric dates of structural events. Data obtained using these techniques will be integrated to place important constraints on tectonic-thermal models for the Himalaya, and compressional mountain belt in general.