THE INVESTIGATION OF NORMAL FAULT UNDER UPWELLING FORCE AND ITS CRITICAL STRESS STATE

SONG Sui-hong; CHEN Shu-ping; HE Ming-yu

2012 Vol. 18, No. 2

Article Contents

Article navigation > Journal of Geomechanics > 2012 > 18(2): 149-157

Next Article Previous Article

SONG Sui-hong, CHEN Shu-ping, HE Ming-yu. THE INVESTIGATION OF NORMAL FAULT UNDER UPWELLING FORCE AND ITS CRITICAL STRESS STATE[J]. Journal of Geomechanics, 2012, 18(2): 149-157.

Citation:

SONG Sui-hong, CHEN Shu-ping, HE Ming-yu. THE INVESTIGATION OF NORMAL FAULT UNDER UPWELLING FORCE AND ITS CRITICAL STRESS STATE[J]. Journal of Geomechanics, 2012, 18(2): 149-157.

THE INVESTIGATION OF NORMAL FAULT UNDER UPWELLING FORCE AND ITS CRITICAL STRESS STATE

1.
College of Geosciences, China University of Petroleum, Beijing 102249, China
2.
State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China
3.
School of Geosciences, University of Edinburgh, Edinburgh EH9 3JW, UK

Received Date: 22 January 2012

Publish Date: 25 June 2012

Abstract

Abstract

The investigation of normal fault formed under tectonic setting of upwelling force and its critical stress state is of significance in the structural interpretation and the hydrocarbon migration. Based on the theory of parabolic Mohr failure envelope, and certain assumptions, mathematical derivation and theory modeling being carried out, quantitative functions of geometric shape of normal fault and its critical stress state were given. It is found that the fault dip becomes smaller from shallow to deep, being a listric fault. The rate of dip change is only related to the properties of strata. And the rate of dip change is faster in isotopic sandstone than in mudstone. It is also proved that the depth of the fault is linear against the amplitude of upwelling force. A typical ramp-flat normal fault can be drawn from the fracture modeling of interbedded sandstone-mudstone rock body. Not only are these conclusions consistent with the natural phenomena and general cognition, but also they can explain the geometric shape of faults quantitatively and find the critical stress state.
- upwelling force /
- fault geometry /
- critical stress /
- fracture criterion

FullText(HTML)

References

[1]	谭凯旋, 谢焱石, 陈广浩, 等.岩石断裂作用的复杂性和混沌动力学[J].大地构造与成矿学, 2003, 27(4):372~377. Google Scholar TAN Kai-xuan, XIE Yan-shi, CHEN Guang-hao, et al. Complexity and chaotic dynamics of rock faulting[J]. Geotectonica Et Metallogenia, 2003, 27(4):372~377. Google Scholar
[2]	Perie P J. Determination of fracture mechanism by microscopic observation of crack[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 1991, 28(1):83~84. doi: 10.1016/0148-9062(91)93236-Y CrossRef Google Scholar
[3]	谢和平.大理岩微观断裂的分形(fractal)模型研究[J].科学通报, 1989, 34(5):365~368. Google Scholar XIE He-ping. The investigation of fractal model of micro-fracture of marble[J]. Chinese Science Bulletin, 1989, 34(5):365~368. Google Scholar
[4]	朱志澄.构造地质学[M].武汉:中国地质大学出版社, 1999:1~226. Google Scholar ZHU Zhi-cheng. Structural geology[M]. Wuhan:China University of Geosciences Press, 1999:1~226. Google Scholar
[5]	陈庆宣, 王维襄, 孙叶, 等.岩石力学与构造应力场分析[M].北京:地质出版社, 1998:1~241. Google Scholar CHEN Qing-xuan, WANG Wei-xiang, SUN Ye, et al.The investigation of rock mechanics and tectonic stress field[M].Beijing:Geological Publishing House, 1998. 241. Google Scholar
[6]	陆克政.含油气盆地分析[M].东营:石油大学出版社, 2001:1~424. Google Scholar LU Ke-zheng. The analysis of petroliferous basin[M]. Dongying:China University of Petroleum Press, 2001:1~424. Google Scholar
[7]	Suppe J, Chou G T, Hook S C. Rates of folding and faulting determined from growth strata[C]//McClay K R. Thrust tectonics. London:Chapman & Hall, 1992:105~121.http://link.springer.com/chapter/10.1007/978-94-011-3066-0_9 Google Scholar
[8]	庄培仁, 常志忠.断层构造研究[M].北京:地质出版社, 1996:1~346. Google Scholar ZHUANG Pei-ren, CHANG Zhi-zhong. The investigation of fault structures[M]. Beijing:Geological Publishing House, 1996:1~346. Google Scholar
[9]	李德生.渤海湾含油气盆地的地质和构造特征[J].石油学报, 1980, 1(1):7~20. Google Scholar LI De-sheng. Geology and structural characteristics of the Bohai Bay[J]. Acta Petrolei Sinica, 1980, 1(1):7~20. Google Scholar
[10]	邓晋福, 赵海岭, 莫宣学, 等.中国大陆根-柱构造——大陆动力学的钥匙[M].北京:地质出版社, 1996:1~110. Google Scholar DENG Jin-fu, ZHAO Hai-ling, MO Xuan-xue, et al. Continental roots plume tectonics of China:Key to the continental dynamics[M]. Beijing:Geological Publishing House, 1996:1~110. Google Scholar
[11]	牛树银, 胡华斌, 毛景文, 等.鲁西地区地质构造特征及其形成机制[J].中国地质, 2004, 31(1):34~39. Google Scholar NIU Shu-gen, HU Hua-bin, MAO Jing-wen, et al. Structure in western Shandong and its genetic mechanism[J]. Geology in China, 2004, 31(1):34~39. Google Scholar
[12]	牛树银, 邵济安, 孙爱群, 等.华北东部盆山耦合与内生成矿作用[J].大地构造与成矿学, 2006, 30(3):331~342. Google Scholar NIU Shu-gen, SHAO Ji-an, SUN Ai-qun, et al. Coupling relationship between basin-mountain and nedogenic mineralization in the eastern part of north China[J]. Geotectonica et Metallogenia, 2006, 30(3):331~342. Google Scholar