| Post-Late Paleozoic Collisional Framework of Southern Great Altai |
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| 作者姓名： | Boris M. CHIKOV Sergei V. ZINOVIEV and Еugene V. DEYEV |
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| 作者单位： | Institute of Geology, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia |
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| 基金项目： | This study was supported by V.S. Sobolev Institute of Geology and Mineralogy Siberian Branch of Russian Academy of Sciences (basic project). |
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| 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.
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| 关 键 词： | continental collision post-Late Paleozoic events tectonic framework dynamic metamorphism Altai Central Asia |
| 收稿时间： | 2011/5/24 0:00:00 |
| 修稿时间： | 2011/10/11 0:00:00 |
Post‐Late Paleozoic Collisional Framework of Southern Great Altai |
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| Authors: | Boris M CHIKOV Sergei V ZINOVIEV Eugene V DEYEV |
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| Institution: | Institute of Geology, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090, Russia |
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| Abstract: | 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. |
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| Keywords: | continental collision post‐Late Paleozoic events tectonic framework dynamic metamorphism Altai Central Asia |
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