A PRELIMINARY ANALYSIS OF PRE-CENOZOIC TECTONIC DEFORMATION OF ZHONGSHA-XISHA BLOCK IN SOUTH CHINA SEA

ZHU Rongwei; LIU Hailing; YAO Yongjian; ZHOU Yang; WANG Yin; LI Yuhan

doi:10.16562/j.cnki.0256-1492.2017.02.007

2017 Vol. 37, No. 2

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Article navigation > Marine Geology & Quaternary Geology > 2017 > 37(2): 67-74

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ZHU Rongwei, LIU Hailing, YAO Yongjian, ZHOU Yang, WANG Yin, LI Yuhan. A PRELIMINARY ANALYSIS OF PRE-CENOZOIC TECTONIC DEFORMATION OF ZHONGSHA-XISHA BLOCK IN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2017, 37(2): 67-74. doi: 10.16562/j.cnki.0256-1492.2017.02.007

Citation:

ZHU Rongwei, LIU Hailing, YAO Yongjian, ZHOU Yang, WANG Yin, LI Yuhan. A PRELIMINARY ANALYSIS OF PRE-CENOZOIC TECTONIC DEFORMATION OF ZHONGSHA-XISHA BLOCK IN SOUTH CHINA SEA[J]. Marine Geology & Quaternary Geology, 2017, 37(2): 67-74. doi: 10.16562/j.cnki.0256-1492.2017.02.007

A PRELIMINARY ANALYSIS OF PRE-CENOZOIC TECTONIC DEFORMATION OF ZHONGSHA-XISHA BLOCK IN SOUTH CHINA SEA

1.
GAS Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, 510301
2.
University of Chinese Academy of Science, Beijing, 100049
3.
Guangzhou Marine Geological Survey, Guangzhou, 510760

More Information

Corresponding author: LIU Hailing, liuh82@126.com

Received Date: 11 September 2016

Revised Date: 25 October 2016

Publish Date: 28 April 2017

Abstract

Abstract

Multi-channel seismic data are interpreted with the support of drilling and trawling samples from surrounding areas to identify Pre-Cenozoic strata in the middle-west block of the western South China Sea. Results suggest that the Pre-Cenozoic strata do occur in the north of the study area. Upon this fact, the tectonic deformation of the Pre-Cenozoic strata is reconstructed using the back-stripping method, the fault-recovery method and the antitone structural analysis method. The strata can be divided into upper, middle and lower structural layers in the study area. Compressive structures, such as folds and thrusts, are found in the lower structure layer. By the end of Pre-Cenozoic, the region was suffered from continuous gently folding. Combined with the fault thrust direction, it is concluded that the main compressive stress came from the southeast direction, which may be related to evolution of the paleo-South China Sea.
- tectonic deformation /
- Pre-Cenozoic /
- Zhongsha-Xisha block /
- western South China Sea

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References

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