U-Pb Geochronology of Hydrothermal Zircons from the Nyainqentanglha Ductile Shear Zone: Constraints on Inception of Cenozoic East–West Extension in the Tibetan Plateau  

作　　者：HUANG Yonggao LI Yingxu HAN Fei JIA Xiaochuan YANG Xuejun LI Guangming KANG Zhiqiang WANG Chunzeng 

机构地区：[1]Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials in Guangxi&Key Laboratory of Hidden Metallic Ore Exploration,Guilin University of Technology,Guilin 541004,China [2]Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province,Sichuan Geological Survey,Chengdu 610081,China [3]Chengdu Center,China Geological Survey,Chengdu 610081,China [4]University of Maine at Presque Isle,Presque Isle,Maine 04769,USA

出　　处：《Acta Geologica Sinica(English Edition)》2020年第4期1314-1316,共3页地质学报（英文版）

基　　金：financially supported by the China Geological Survey(grant No.DD20190147);the National Natural Science Foundation of China(grant No.41863005);the Guangxi Natural Science Foundation(grant No.2017GXNSFBA198203)。

摘　　要：Objective The giant Nyainqentanglha granitic batholith, located in the Lhasa Terrane, is the youngest granite pluton emplaced at 18.3–11.0 Ma during the Miocene epoch. A series of NE-striking sinistral normal ductile shear zones developed on its north and south sides. The ductile shear zones are considered to be the western boundary faults of the Yadong-Gulu rift system and have the potential to provide critical temporal constraints for the large-scale East–West extension event in the Tibetan Plateau.

关 键 词：TIBETAN EAST CENOZOIC 

分 类 号：P597.3[天文地球—地球化学] P534.6[天文地球—地质学]