南海北部神狐陆坡区灾害地质因素特征

马云; 李三忠; 夏真; 张丙坤; 王霄飞; 程世秀

doi:10.3799/dqkx.2014.119

Volume 39 Issue 9

Sep. 2014

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Article Navigation > Earth Science > 2014 > 39(9): 1364-1372

Ma Yun, Li Sanzhong, Xia Zhen, Zhang Bingkun, Wang Xiaofei, Cheng Shixiu, 2014. Characteristics of Hazardous Geological Factors on Shenhu Continental Slope in the Northern South China Sea. Earth Science, 39(9): 1364-1372. doi: 10.3799/dqkx.2014.119

Citation:

Ma Yun, Li Sanzhong, Xia Zhen, Zhang Bingkun, Wang Xiaofei, Cheng Shixiu, 2014. Characteristics of Hazardous Geological Factors on Shenhu Continental Slope in the Northern South China Sea. Earth Science, 39(9): 1364-1372. doi: 10.3799/dqkx.2014.119

Citation:

Ma Yun, Li Sanzhong, Xia Zhen, Zhang Bingkun, Wang Xiaofei, Cheng Shixiu, 2014. Characteristics of Hazardous Geological Factors on Shenhu Continental Slope in the Northern South China Sea. Earth Science, 39(9): 1364-1372. doi: 10.3799/dqkx.2014.119

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Characteristics of Hazardous Geological Factors on Shenhu Continental Slope in the Northern South China Sea

doi: 10.3799/dqkx.2014.119

Ma Yun^{1, 2
,},
Li Sanzhong^{1, 2
,
,},
Xia Zhen³,
Zhang Bingkun^{1, 2},
Wang Xiaofei^{1, 2},
Cheng Shixiu^{1, 2}

1.
Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, China
2.
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
3.
Guangzhou Marine Geological Survey, Guangzhou 510760, China

Received Date: 2014-03-07
Publish Date: 2014-09-01

Abstract

Abstract

Since Shenhu continental slope in the northern South China Sea is rich in oil and gas resources as well as natural gas hydrate, and its seabed stability is important for oil and gas exploitation and engineering projects. But special study on seabed stability here is far from being enough now. Based on interpretation of 2D seismic data, shallow profiles and multi-beam echo sounder data, this paper focuses on the whole geological environment of this area and identifies 20 different kinds of hazardous geological factors. According to the dynamic source, five hazard types are concluded as follows: tectonic stress-related, gravity-related, hydrodynamics-related, gas effusion-related and soil-related hazards. Each type includes multi-hazardous factors. According to the plan-view distribution of the hazardous geological factors, this area can be divided into the following six hazard regions: intensive areas of buried delta, submarine landslides, volcanism, weak layers, shallow fracture zone and shallow bedrock. Major hazardous factors and their seismic reflection characteristics are presented to provide scientific reference for development of future engineering projects in the study area.
- the South China Sea,
- Shenhu continental slope,
- hazards,
- classification,
- reflection characteristics

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References(69)

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Characteristics of Hazardous Geological Factors on Shenhu Continental Slope in the Northern South China Sea

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