Influencing factors and evaluation application of regional crustal stability in the Bohai Strait

Sai Mei; Hong-xian Chu; Ling-yu Dong; Zhong-hua Fang; Pan-feng Li; Fei-fei Zhang; Rui Shan; Tie-hu Zhao

doi:10.31035/cg2018075

2019 Vol. 2, No. 3

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Article navigation > China Geology > 2019 > 2(3): 354-363

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Sai Mei, Hong-xian Chu, Ling-yu Dong, Zhong-hua Fang, Pan-feng Li, Fei-fei Zhang, Rui Shan, Tie-hu Zhao, 2019. Influencing factors and evaluation application of regional crustal stability in the Bohai Strait, China Geology, 2, 354-363. doi: 10.31035/cg2018075

Citation:

Influencing factors and evaluation application of regional crustal stability in the Bohai Strait

a.
Qingdao Institute of Marine Geology, China geological survey, Ministry of Natural Resources, Qingdao 266071, China
b.
Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China

More Information

Corresponding author: chx-8@163.com (Hong-xian Chu)

Received Date: 01 April 2019

Revised Date: 23 May 2019

Accepted Date: 14 June 2019

Available Online: 21 September 2019

Publish Date: 25 November 2019

Abstract

Abstract

Due to the extremely complex geological conditions in the Bohai Strait, active faults is very developed and earthquake activity occurs frequently. It is of great importance to evaluate the regional crustal stability for the planning and construction of the Trans-straits Passage. In this study, the authors carry out the evaluation by means of buffer analysis, topology analysis and overlay analysis based on ArcGIS software. The evaluation mainly analyzed six assessment factors of Bohai Strait including neotectonic activity, active faults distribution, seismicity, tectonic stress fields, Bouguer gravity anomaly and geological disasters. In brief, the crustal stability of the eastern North Yellow Sea Basin is best, while that of the Bohai Basin and southwest Bohai Strait is poor. Meanwhile, small and frequent earthquakes in the southern Strait and geological disasters developed in the northern and central Strait such as tidal ridge and shallow gas which may adversely impact on the Trans-straits Passage construction.
- Regional crustal stability /
- Trans-straits Passage /
- Coastal geological survey Engineering /
- GIS /
- Bohai Strait /
- China

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References

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