| 3-D velocity structure in the central-eastern part of Qilianshan |
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| 作者姓名： | 张元生 周民都 荣代潞 张立光 许中秋 |
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| 作者单位： | Lanzhou Institute of Seismology，China Earthquake Administration，Lanzhou 730000，China，Lanzhou Institute of Seismology，China Earthquake Administration，Lanzhou 730000，China，Lanzhou Institute of Seismology，China Earthquake Administration，Lanzhou 730000，China，Lanzhou Institute of Seismology，China Earthquake Administration，Lanzhou 730000，China，Earthquake Administration of Lanzhou City，Lanzhou 730000，China |
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| 基金项目： | National Natural Science Foundation of China (40074010) and Natural Science Foundation of Gansu Province (ZS981-A25-011) |
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| 摘 要： | Introduction The central-eastern part of Qilianshan, located along the northeastern margin of Qing-hai-Xizang (Tibetan) plateau, belongs to the Qilian tectonic zone with active neotectonic move-ment. The main active faults are Haiyuan-Qilian fault, Gulang-Tianjingshan fault and Huang-cheng-Taerzhuang fault. The research area in this paper is a rectangle (Figure 1), the location of the four apex are: A(37.50N, 101.60E), B(36.55N, 103.74E), C(37.20N, 104.20E) and D(38.15N, 102.04E). In…
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| 收稿时间： | 21 November 2007 |
| 修稿时间： | 26 August 2003 |
3-D velocity structure in the central-eastern part of Qilianshan |
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| Zhang Yuan-sheng , Zhou Min-du , Rong Dai-lu , Zhang Li-guang and Xu Zhong-qiu.3-D velocity structure in the central-eastern part of Qilianshan[J].Acta Seismologica Sinica(English Edition),2004,17(3):272-281. |
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| Authors: | Zhang Yuan-sheng Zhou Min-du Rong Dai-lu Zhang Li-guang and Xu Zhong-qiu |
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| Institution: | 1. Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China
2. Earthquake Administration of Lanzhou City, Lanzhou 730000, China |
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| Abstract: | The 3-D velocity tomography image of the central-eastern part of Qilianshan is obtained by the joint inversion of 3-D velocity structure and focal parameters based on the S-P data of micro-earthquakes recorded by the digital seismic network set up for a Sino-French cooperation program since 1996. The inversed velocity structure does primarily reflect some important features of the deep structure in the region and provide the scientific background for the further study of active tectonic structure and the calculation of earthquake parameters. |
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| Keywords: | central-eastern Qilianshan micro-earthquake observation 3-D velocity structure focal pa-rameters joint inversion |
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