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Layer-block tectonics of Cenozoic basements and formation of intra-plate basins in Nansha micro-plate, southern South China Sea
Liu, HL; Xie, GF; Lin, QJ; Zheng, HB; Liu, YC; liuh82@126.com
2009
Source PublicationACTA OCEANOLOGICA SINICA
ISSN0253-505X
Volume28Issue:3Pages:26-39
AbstractLayer-block tectonics (LBT) concept, with the core of pluralistic geodynamic outlook and multilayer-sliding tectonic outlook, is one of new keys to study 3-dimensional solid and its 4-dimensional evolution history of global tectonic system controlled by global geodynamics system. The LBT concept is applied to study the lithospheric tectonics of the southern South China Sea (SCS). Based on the analysis of about 30 000 km of geophysical and geological data, some layer-blocks in the Nansha micro-plate can be divided as Nansha ultra-crustal layer-block, Zengmu crustal layer-block, Nanwei (Rifleman bank)-Andu (Ardasier bank) and Liyue (Reed bank)-North Palawan crustal layer-blocks, Andu-Bisheng and Liyue-Banyue basemental layer-blocks. The basic characteristics of the basemental layer-blocks have been dicussed, and three intra-plate basin groups are identified. The intra-plate basins within Nansha micro-plate can be divided into three basin groups of Nanwei-Andu, Feixin-Nanhua, and Liyue-North Palawan based on the different geodynamics. In the light of pluralistic geodynamic concept, the upheaving force induced by the mid-crust plastic layer is proposed as the main dynamical force which causes the formation of the intra-plate basins within the Nansha micro-plate. Finally, models of a face-to-face dip-slip-detachment of basemental layer-block and a unilateral dip-slip-detachment of basemental layer-block are put forward for the forming mechanisms of the Nanwei-Andu and Liyue-North Palawan intra-plate basin groups, respectively.
Department[Liu Hailing; Lin Qiujin; Zheng Hongbo; Liu Yingchun] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Xie Guofa] Bur Nucl Geol, Yingtan 335001, Jiangxi, Peoples R China
KeywordLayer-block Tectonics Forming Mechanism Of Intra-plate Basin Nansha Micro-plate South China Sea Oil And Gas Gas Hydrate
Subject AreaOceanography
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Indexed Bysci
Funding Project海洋地质
WOS IDWOS:000268603100005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/4610
Collection中科院边缘海地质重点实验室
Corresponding Authorliuh82@126.com
Recommended Citation
GB/T 7714
Liu, HL,Xie, GF,Lin, QJ,et al. Layer-block tectonics of Cenozoic basements and formation of intra-plate basins in Nansha micro-plate, southern South China Sea[J]. ACTA OCEANOLOGICA SINICA,2009,28(3):26-39.
APA Liu, HL,Xie, GF,Lin, QJ,Zheng, HB,Liu, YC,&liuh82@126.com.(2009).Layer-block tectonics of Cenozoic basements and formation of intra-plate basins in Nansha micro-plate, southern South China Sea.ACTA OCEANOLOGICA SINICA,28(3),26-39.
MLA Liu, HL,et al."Layer-block tectonics of Cenozoic basements and formation of intra-plate basins in Nansha micro-plate, southern South China Sea".ACTA OCEANOLOGICA SINICA 28.3(2009):26-39.
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