Post-Late Paleozoic Collisional Framework of Southern Great Altai

查看全文 作　　者：Boris M. [1]CHIKOV;Sergei V. [1]ZINOVIEV;Еugene V. [1]DEYEV

机构地区：[1]Institute of Geology, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia

出　　处：《Acta Geologica Sinica(English Edition)》索引2012年第86卷第5期,共12页

基　　金：supported by V.S. Sobolev Institute of Geology and Mineralogy Siberian Branch of Russian Academy of Sciences (basic project) 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. 关键词：晚古生代阿尔泰山后碰撞框架动力变质作用变形系统南方二叠纪末

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Post-Late Paleozoic Collisional Framework of Southern Great Altai

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