Inhomogeneity of the lithosphere of the Tibetan Plateau and implications for geodynamics |
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| Authors: | Deng Jinfu Mo Xuanxue Luo Zhaohua Wang Yang Zhao Hailing Zhao Zhidan Su Shangguo Yu Xuehui |
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| Institution: | 1.China University of Geosciences,Beijing,China |
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| Abstract: | This paper discusses inhomogeneity in structure of the present lithosphere underneath the Tibetan Plateau, and deduces the P-T-t paths and deep processes during the orogenic process of post India-Asia collision through revealing the nature and sequence of geological events. A three-stage-evolution model for tectonic phases of the Tibetan Plateau has been presented. It is suggested that the formation of Parmirs-type of cool lithosphere roots represents the early phase; Nianqingtanggula-type of thinned lithosphere roots, the middle phase; and Qiangtang-type of “warm” lithosphere roots (formed by cooling of the asthenosphere), the late phase. |
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