Tectonic nature and timing of HP and UHT pelitic granulites from the Khondalite Belt in the North China Craton
- 作者：Guochun ZhaoJinghui GuoChangqing YinXiwen Zhou
- 会议时间：2011-11-01
- 作者单位：Guochun Zhao,Changqing Yin(Department of Earih Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong)Jinghui Guo,Xiwen Zhou(Institute of Geology & Gcophysics, CSA, Beijing 100029, China)
- 母体文献：2011年全国岩石学与地球动力学研讨会论文集
- 会议名称：2011年全国岩石学与地球动力学研讨会
- 会议地点：西安
- 主办单位：中国地质学会
- 语种：chi
- 分类号：P5;P3
摘要
@@ The east-west-trending Khondalite Belt is considered as a Paleoproterozoic continent-continent collisional beltalong which the Yinshan Block in the north collided with the Ordos Block in the south to form the Westem Block.The belt is unique because it contains both high-pressure (HP) and ultrahigh temperature (UHT) pelitic granulites,though the dominant rocks in the belt are medium- to low-pressure pelitic granulites. Metamorphic andgeochrono/ogical studies indicate that the HP and UHT pelitic granulites from the Khondalite Belt did not resultfrom a single metamorphic event, but formed under different tectonic settings at different times.