| Modern tectonic stress field in Southwest Yunnan, China |
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| 作者姓名： | 谢富仁 苏刚 崔效锋 舒赛兵 赵建涛 |
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| 作者单位： | XIE Fu-ren SU Gang CUI Xiao-feng SHU Sai-bing ZHAO Jian-tao Institute of Crustal Dynamics，China Seismological Bureau，Beijing 100085，China |
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| 基金项目： | Chinese Joint Seismological Science Foundation (9507424).
Contribution No. 2001A001, Institute of Crustal Dynamics, China Seism |
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| 摘 要： | IntroductionSouthwest Yunnan region is located in the southeastern margin of Qinghai-Tibet Plateau, bordering on the Sichuan-Yunnan rhomboidal block in the east and on the northeast corner of Indian Plate in the northwest. It is one of the regions of intense tectonic activities and frequent strong earthquakes in China continent. To study the features of modern tectonic stress field of this region is of significance for revealing the evolution mechanisms of Tibetan Plateau as well as for un…
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| 收稿时间： | 9 August 2000 |
| 修稿时间： | 1 December 2000 |
Modern tectonic stress field in Southwest Yunnan, China |
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| XIE Fu-ren,Su Gang,CUI Xiao-feng,SHU Sai-bing,ZHAO Jian-tao.Modern tectonic stress field in Southwest Yunnan, China[J].Acta Seismologica Sinica(English Edition),2001,14(1):18-24. |
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| Authors: | XIE Fu-ren Su Gang CUI Xiao-feng SHU Sai-bing ZHAO Jian-tao |
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| Institution: | Institute of Crustal Dynamics, China Seismological Bureau, |
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| Abstract: | By means of inversion of fault slip data, the parameters of 20 tectonic stress tensors in Southwest Yunnan region are determined. Compared with the average stress field of the region obtained from focal mechanism solutions, the following characteristics of modern tectonic stress field in this region are obtained. From the west of Zhenyuan- Yingpanshan fault to the south of Longling fault zone, the maximum compressional stress is in NNE direction and the stress regime is mainly of strike-slip type. In Longling fault zone and the area north to it, the direction of maximum compressional stress is near-NS or NNW, the stress regime is of strike-slip type. |
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| Keywords: | Southwest Yunnan modern tectonic stress field slickenside on active fault focal mechanism solution |
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