DEVELOPMENT AND EVOLUTION OF THE STRIKE-SLIP FAULTS IN SHUNNAN AREA, TARIM BASIN

KONG Yong-ji; WU Kong-you; LIU Yin

doi:10.13686/j.cnki.dzyzy.2020.05.006

2020 Vol. 29, No. 5

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Article navigation > Geology and Resources > 2020 > 29(5): 446-453

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KONG Yong-ji, WU Kong-you, LIU Yin. DEVELOPMENT AND EVOLUTION OF THE STRIKE-SLIP FAULTS IN SHUNNAN AREA, TARIM BASIN[J]. Geology and Resources, 2020, 29(5): 446-453. doi: 10.13686/j.cnki.dzyzy.2020.05.006

Citation:

KONG Yong-ji, WU Kong-you, LIU Yin. DEVELOPMENT AND EVOLUTION OF THE STRIKE-SLIP FAULTS IN SHUNNAN AREA, TARIM BASIN[J]. Geology and Resources, 2020, 29(5): 446-453. doi: 10.13686/j.cnki.dzyzy.2020.05.006

DEVELOPMENT AND EVOLUTION OF THE STRIKE-SLIP FAULTS IN SHUNNAN AREA, TARIM BASIN

School of Geosciences and Technology, China University of Petroleum, Qingdao 266580, Shandong Province, China

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Corresponding author: WU Kong-you, wukongyou@163.com

Received Date: 11 March 2020

Revised Date: 06 May 2020

Publish Date: 25 October 2020

Abstract

Abstract

Shunnan area, located in the northern Tazhong uplift of Tarim Basin, is affected by multi-stage tectonic stress with a large number of developed strike-slip faults. Detailed interpretation and deep analysis of 3D seismic data show the faults are varied in vertical and plane views with multi-stage structural superposition. There are mainly 3 groups, i.e. NE, NEE, and NW, of strike-slip faults developed in the study area. The NE-trending faults are highly active, with en echelon and horsetail structures developed on the plane, and composite flower structures of symmetric flower, positive and negative flowers superimposed on the profile; while the NEE and NW faults are less active, with single vertical strike-slip fault dominated on the profile, and linear extension or multi-section synthetic strike-slip faults connected on the plane. According to the structural style and stress property, the FSN1 can be divided into 4 segments along the strike, including 2 composite flower-tensional segments and 2 simple flower-compressional segments, which occur alternately along the strike. The strike-slip faults mainly went through 5 stages of tectonic movements:the Early Caledonian, Episode I of Middle Caledonian, Episode Ⅲ of Middle Caledonian, Late Caledonian-Early Hercynian and Late Hercynian, among which, the second and third are the main stages for fault activity.
- strike-slip fault /
- tectonic evolution /
- flower structure /
- 3D seismic interpretation /
- Tarim Basin

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References

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