Paleozoic structural and geodynamic evolution of eastern Tianshan （NW China）： welding of the Tarim and Junggar plates

作     者：by Jacques Charve Liangshu Shu Sebastien Laurent-Charvett 

作者机构：ISTO Universite d′Orleans B.P. 6759 45067 Orl6ans Cedex 2 France. Email： Jacques.charvet@univ-orleans.fr State Key Laboratory for Mineral Deposits Research Department of Earth Sciences Nanjing University Nanjing 210093 China. Institut Polytechnique LaSalle Beauvais Site de Cergy-Pontoise - Departement des Geosciences IPSL - 13 bd de rHautil - 95092 Cergy-Pontoise Cedex France. 

出 版 物：《Episodes》 (地质幕（英文版）)

年 卷 期：2007年第30卷第3期

页      面：162-186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：This study was financially supported by a grant from the National Basic Research Program of China(973 Program,2007CB411301) the Bureau of China Geological Survey(1212010611806) by ISTO 

主　　题：古生代结构 地球动力学 进化 塔里木盆地 天山 中国 

摘      要：Chinese East Tianshan is a key area for understanding the Paleozoic accretion of the southern Central Asian Orogenic Belt. A first accretion-collision stage, before the Visean, developed the Eo-Tianshan range, which exhibits north-verging structures. The geodynamic evolution included： i） Ordovician-Early Devonian southward subduction of a Central Tianshan ocean beneath a Central Tianshan arc; ii） Devonian oceanic closure and collision between Central Tianshan arc and Iqli-North Tianshan block, along the Central Tianshan Suture Zone; iii） Late Devonian-earliest Carboniferous closure of a South Tianshan back-arc basin, and subsequent Central Tianshan-Tarim active margin colli- sion along the South Tianshan Suture Zone. A second stage involved： i） Late Devonian-Carboniferous south- ward subduction of North Tianshan ocean beneath the Eo-Tianshan active margin （Yili-North Tianshan arc）;