Paleomagnetic and Isotopic Study of Pre-Cenozoic Tectonics of South China

东南亚的构造包括在相当长的时间范围内不同的克拉通碎片和块体的聚积和融合。例如，中国南部的湖南地块与扬子克拉通相连，但附着年龄限制较差，估计范围为前寒武纪至中生代。该项目将对湖南地块的古生代和中生代岩石进行古地磁研究，以确定这些岩石的先期位置，从而限制碰撞的时间。这些研究成果不仅对中国南部地质有一定的参考价值，而且对认识东南亚的大地构造也有一定的参考价值。

The tectonics of Southeast Asia involves accretion and amalgamation of disparate cratonic fragment and blocks over a considerable range of time. The Hunan Block of South China for example accreted to the Yangtze craton, but the age of attachment is poorly constrained and estimates range from Precambrian to Mesozoic. This project will examine Paleozoic and Mesozoic rocks in the Hunan block paleomagnetically to determine prior positions of thee constituent rocks and therefore to constrain the time of collision. Results will be of utility not only in South China geology, but in understanding Southeast Asia tectonics.