Zircon SHRIMP geochronology and geochemistry of TTG rocks in Sushui Complex from Zhongtiao Mountains with its geological implications

作     者：TIAN Wei, LIU Shuwen, LIU Chaohui, YU Shengqiang, LI Qiugen and WANG Yueran (Key Laboratory of Orogenic Belt and Crustal Evolution, MOE, School of Earth and Space Sciences, Peking University, Beijing 100871, China) 

作者机构：Key Laboratory of Orogenic Belt and Crustal Evolution MOE School of Earth and Space Sciences Peking University Beijing 100871 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2006年第16卷第5期

页      面：492-500页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 40420120135) 

主　　题：Sushui Complex Zhongtiao Block Trans-North China Orogen zircon U-Pb geochronology trace element simulation. 

摘      要：The tonalite-trondhjemite-granodiorite (TTG) rocks in Sushui Complex of Zhongtiao Block can be divided into two series according to their zircon U-Pb ages and geochemical characteristics: one is subduction-related (SR) and the other collision-related (CR) . The SR TTG rocks, together with other Late Archean island arc magmatism, were developed as a result of oceanic subduction between the Eastern and Western blocks in Late Archean; while the CR TTG rocks formed in a thickened crustal environment, which was responding to the collision between the Eastern and Western blocks in Paleoproterozoic. All these features support a model that the Zhongtiao Block is a part of the Trans-North China Orogen in the middle of North China Craton.