Zircon U-Pb ages in the Nuratau ophiolitic mélange in the southern Tianshan,Uzbekistan:Implication for the closure of Paleo-Asian Ocean  

作　　者：Kai Weng Ji-fei Cao Divayev-Farid Karibovich Jahongir-Jurabekovich Movlanov Bo Chen Zhong-ping Ma 

机构地区：[1]Xi’an Center of Geological Survey,China Geological Survey,Xi’an 710119,China [2]The Center for Geoinnovation Technologies Doctor of Sciences in Geology and Mineralogy,University of Geological Science,Tashkent 100060,Uzbekistan

出　　处：《China Geology》2024年第2期365-368,I0004-I0007,共8页中国地质（英文）

基　　金：supported by the Key R&D Program of Shaanxi Province(2024GH-ZDXM-26,2022KW-19);Key R&D Program of Xinjiang Province(2022A03010-2);geological survey projects of China Geological Survey(DD20160105,DD20190445)。

摘　　要：1.Objective The Central Asian Orogenic Belt(CAOB),which is located between the European craton,Siberian craton,and Tarim-North China craton(Fig.1a),is the largest phanerozoic accretionary orogen in the world.It resulted from the longterm subduction and accretion of the Paleo-Asian Ocean(PAO).The PAO has been in existence since at least the late Mesoproterozoic(about 1020 Ma).However,there has been debate about the closing time of the PAO.

关 键 词：ASIAN Paleo TIANSHAN 

分 类 号：P587[天文地球—岩石学] P597.3[天文地球—地质学]