Post-Late Paleozoic Collisional Framework of Southern Great Altai

作     者：Boris M. CHIKOV Sergei V. ZINOVIEV Еugene V. DEYEV Boris M.CHIKOV;Sergei V.ZINOVIEV;Eugene V.DEYEV

作者机构：Institute of Geology Siberian Branch of Russian Academy of Sciences Novosibirsk 630090 Russia 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2012年第86卷第5期

页      面：1093-1104页

核心收录：

学科分类：070902[理学-地球化学] 0709[理学-地质学] 07[理学] 

基　　金：supported by V.S. Sobolev Institute of Geology and Mineralogy Siberian Branch of Russian Academy of Sciences (basic project) 

主　　题：continental collision post-Late Paleozoic events tectonic framework dynamic metamorphism Altai Central Asia 

摘      要：We outline the post-Late Paleozoic （latest Permian to Cenozoic） collisional framework of the southern Great Altai （Central Asia） produced by the convergence between the Tuva-Mongolia and Junggar continental terranes （microplates）. The collisional structures in the region classified on the basis of their geometry and deformation style, dynamic metamorphism, and compositions of tectonites are of three main types： （1） mosaic terranes made up of large weakly deformed Paleozoic blocks separated by younger shear zones; （2） contractional deformation systems involving structures formed in post-Late Paleozoic time, parallel faults oriented along collisional deformation systems, and relict lenses of Paleozoic orogenic complexes; and （3） isolated zones of dynamic metamorphism composed mostly of collisional tectonites different in composition and alteration grade.