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Evolution of Neoproterozoic-Mesozoic Sedimentary Basins in Gangdese Area, Tibetan Plateau

Wu, Jing ; Xu, Yadong ; An, Xianyin ; Kong, Lingyao ; Luo, Liang ; Zhang, Kexin

Di qiu ke xue, 2014-08, Vol.39 (8), p.1052-1064 [Periódico revisado por pares]

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  • Título:
    Evolution of Neoproterozoic-Mesozoic Sedimentary Basins in Gangdese Area, Tibetan Plateau
  • Autor: Wu, Jing ; Xu, Yadong ; An, Xianyin ; Kong, Lingyao ; Luo, Liang ; Zhang, Kexin
  • É parte de: Di qiu ke xue, 2014-08, Vol.39 (8), p.1052-1064
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: The Gangdese area is located in the middle of the Tibetan Plateau. Its southern boundary is the Indus River-Brahmaputra suture zone, and northern boundary is the Bangonghu-Shuanghu-Nujiang suture zone. It is a huge tectonic-magmatic belt, nearly east-west directed. The Gangdese is divided into eight tectonic-stratigraphic subregions in this paper. The sedimentary features of eight stratigraphic subregions in different periods are generalized from Neoproterozoic to Mesozoic, and the development and evolution of the sedimentary basins in Gangdese, Tibet plateau is explored. The following three stages of evolution are revealed: (1) the Gangdese started the evolution of continental-margin rift from Sinian; (2) it mainly developed carbonate sedimentary basins in the Late Paleozoic, featuring stable and broad development of carbonate platform and interplatform basins in this period. Gangdese started the development of rifted continental margin of stretch properties from Carboniferous, and the main sedimentary basins became continental-margin rift; (3) it was denuded in most areas from Early Mesozoic due to continental uplift. As Bangonghu-Nujiang Tethys's subduction towards north and Brahmaputra's subduction towards south, the Gangdese developed large magmatic arc belt at last in Late Mesozoic, and the main sedimentary basins changed to retroarc basin, interarc basin and forearc basin.
  • Idioma: Inglês

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