Geomorphology and its control of deep-water slope of the margin of the South China Sea

WANG Hai-rong; WANG Ying-min; QIU Yan; PENG Xue-chao; LIU Yi-yao

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WANG Hai-rong, WANG Ying-min, QIU Yan, PENG Xue-chao, LIU Yi-yao. Geomorphology and its control of deep-water slope of the margin of the South China Sea[J]. Haiyang Xuebao, 2008, 30(2): 70-79.

Citation:

WANG Hai-rong, WANG Ying-min, QIU Yan, PENG Xue-chao, LIU Yi-yao. Geomorphology and its control of deep-water slope of the margin of the South China Sea[J]. Haiyang Xuebao, 2008, 30(2): 70-79.

WANG Hai-rong, WANG Ying-min, QIU Yan, PENG Xue-chao, LIU Yi-yao. Geomorphology and its control of deep-water slope of the margin of the South China Sea[J]. Haiyang Xuebao, 2008, 30(2): 70-79.

Citation:

WANG Hai-rong, WANG Ying-min, QIU Yan, PENG Xue-chao, LIU Yi-yao. Geomorphology and its control of deep-water slope of the margin of the South China Sea[J]. Haiyang Xuebao, 2008, 30(2): 70-79.

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Geomorphology and its control of deep-water slope of the margin of the South China Sea

1.
School of Energy Resources, China University of Geosciences, Beijing 100083, China;Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249, China
2.
Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249, China
3.
Guangzhou Marine Geological Survey Bureau, Guangzhou 510760, China
4.
Dagang Petrochemical Branch, China Petroleum Natural Gas Co., Ltd., Tianjing 300280, China

Received Date: 2007-05-16
Rev Recd Date: 2007-08-17

Abstract

Abstract

On the basis of the study of the fine geomorphology and high-resolution multichannel seismic profile,A conclusion that the tectonic framework of rift from Paleocene to Oligocene is the natural controlling factor to the geomorphology of slope of the northern South China Sea is drawn. The distribution of rifts and corresponding highs controls their geomorphology and evolution Besides this type and amount of matter source modify the geomorphology of slope and influence the local characteristics under the general framework. External forces,such as seismic activities and deep-water current,may control the kind of sedimentation and its microgeom orphology to some extent. These characteristics are different from both sides of the Atlantic whose rifting is from Late Jurassic to Palaeogene,so the tectonic framework of both sides of the Atlantic has less influence than source of sediment and its dispersal system On the basis of such study the slope of the northern. South China Sea can be divided into five segments from west to east: Ying Qiong slope segment,Shenhu slope segment,Zhujiang Valley slope segment,Dongsha slope segment and Taiw an Bank slope segment
- South China Sea,
- slope,
- rift epoch,
- geomor phology,
- matter source,
- external forces

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References(17)

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