| Study on basement structures of the northeast Pamirs |
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| 作者姓名： | 段永红 张先康 杨卓欣 |
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| 作者单位： | DUAN Yong-hong ZHANG Xian-kang YANG Zhuo-xin Research Center of Exploration Geophysics，China Seismological Bureau，Zhengzhou 450002，China |
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| 基金项目： | State Key Basic Research Development and Programming Project Mechanism and Prediction of Strong Continental Earthquake (G1998040702) and Joint Seismological Science Foundation of China (198062). Contribution No. GPB200109，Research Center of Exploration |
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| 摘 要： | 1 Geologic setting and layout of the DSS observation network In the studied area there are three major tectonic units, which are referred to as Tianshan fold system, Tarim basin and West Kunlun fold system (Bureau of Geology and Mineral Resources of Xinjiang Uygur Autonomous Region, 1993). The Tianshan fold system is a polycyclic geosyncline on the north edge of Tarim basin, and an orogenic zone resulting from collision and convergence between Tarim block and the Junggar-North Tianshan…
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| 收稿时间： | 13 August 2001 |
| 修稿时间： | 14 March 2002 |
Study on basement structures of the northeast Pamirs |
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| Duan Yong-hong , Zhang Xian-kang and Yang Zhuo-xin.Study on basement structures of the northeast Pamirs[J].Acta Seismologica Sinica(English Edition),2002,15(4):395-401. |
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| Authors: | Duan Yong-hong Zhang Xian-kang and Yang Zhuo-xin |
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| Institution: | Research Center of Exploration Geophysics, China Seismological Bureau, Zhengzhou 450002, China |
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| Abstract: | Basement structures and basement interfaces are obtained by finite-difference and time-term methods using Pg-wave data from two deep seismic sounding (DSS) profiles in the Artush-Jiashi strong earthquake area. The geological units differ considerably in basement depth. The basement structures of contact zones between two geological units also vary obviously, which marks the existence of boundary faults. Finally, we make a remark upon the relationship between characteristics of basement structures and seismicity in the Artush meizoseismal area and the Jiashi earthquake swarm area. |
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| Keywords: | northeast Pamirs basement structure finite-difference tomography time-term method meizoseismal area |
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