Tectonic evolution of Cenozoic sedimentary basements in the northwestern South China Sea

LIU Hai-ling; YANG Tian; ZHU Shu-fen; ZHANG Bo-you; QIU Xue-lin; SHI Xiao-bin

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LIU Hai-ling, YANG Tian, ZHU Shu-fen, ZHANG Bo-you, QIU Xue-lin, SHI Xiao-bin. Tectonic evolution of Cenozoic sedimentary basements in the northwestern South China Sea[J]. Haiyang Xuebao, 2004, 26(3): 54-67.

Citation:

LIU Hai-ling, YANG Tian, ZHU Shu-fen, ZHANG Bo-you, QIU Xue-lin, SHI Xiao-bin. Tectonic evolution of Cenozoic sedimentary basements in the northwestern South China Sea[J]. Haiyang Xuebao, 2004, 26(3): 54-67.

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Tectonic evolution of Cenozoic sedimentary basements in the northwestern South China Sea

Received Date: 2002-10-11
Rev Recd Date: 2003-01-20

Abstract

Abstract

On the basis of synthetical analyses of geology,geophysics,geochemistry,paleontology and paleomag-netism,the basements which control the major Cenozoic sedimentary basins in the northwestern South China Sea are divided into five districts:Beibu Gulf Paleozoic Erathem faulted basement district,Yinggehai Paleozoic Erathem strike-slip pull-apart basement district,Qiongdong Paleozoic Erathem rift-faulted basement district,nort hern Xisha Paleozoic Erathem rifted basement district and southern Xisha Paleozoic Erathem extended basement district.The evolution history of the basements is divided into five stages:(1)D-P₁,the stage of development of eastern Tethyan archipelago ocean;(2)P₂,the stage in which Meso-Tethys(Paleo-South China Sea)began to open and the Paleo-Tethys to subduct;(3)T-K₁,the stage in which the eastern Paleo-Tethyan blocks sutured;(4)K₂-N₁¹,the stage of the formation of modern South China Sea and the consumption of the Paleo-Tethys;(5)since N₁²,the South China Sea stopped spreading and the Australia plate subducted and compressed northward.
- Tethys,
- Cenozoic sedimentary basements,
- northwestern South China Sea

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References(33)

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