The Xainza-Dinggye Normal Fault System (XDNFS) is a large-scale nearly-north-south trending exten-sional structure across central and southern Tibet. Its middle segment developed in Tethys Himalaya with features of ea...The Xainza-Dinggye Normal Fault System (XDNFS) is a large-scale nearly-north-south trending exten-sional structure across central and southern Tibet. Its middle segment developed in Tethys Himalaya with features of earlier magmatic core complex and later normal faults dipping moderately to northwest-west. The magmatic core complex is made up by mylonitic leucogrante with a low-angle detachment fault on the top of it and overlain by lower-grade meta-sedimentary rocks. The structural pattern of the southern segment of XDNFS take the shape of a detachment fault dipping to southeast-east with the High-Himalayan rock series as the lower plate. The Southern Tibetan Detachment System (STDS) is expressed as a ductile shear zone composed of mylonitic leucogranite in the studied area of this note. STDS was cut by the later XDNFS, which presents that nearly-east-west striking STDS is not the controlling or adjusting structure of the nearly-north-south trending ex-tensional structures. The origin of展开更多
基金This work was supported by the Special Project lor Authors of the National Best Ph. D. Dissertations in College and University (Grant No. 200022)the National Natural Science Foundation of China (Grant Nos. 40172074 and 49802020) the National "973" Pr
文摘The Xainza-Dinggye Normal Fault System (XDNFS) is a large-scale nearly-north-south trending exten-sional structure across central and southern Tibet. Its middle segment developed in Tethys Himalaya with features of earlier magmatic core complex and later normal faults dipping moderately to northwest-west. The magmatic core complex is made up by mylonitic leucogrante with a low-angle detachment fault on the top of it and overlain by lower-grade meta-sedimentary rocks. The structural pattern of the southern segment of XDNFS take the shape of a detachment fault dipping to southeast-east with the High-Himalayan rock series as the lower plate. The Southern Tibetan Detachment System (STDS) is expressed as a ductile shear zone composed of mylonitic leucogranite in the studied area of this note. STDS was cut by the later XDNFS, which presents that nearly-east-west striking STDS is not the controlling or adjusting structure of the nearly-north-south trending ex-tensional structures. The origin of
