| Study on electric variations of media in epicentral area by geomagnetic transfer functions |
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| 引用本文： | 曾小苹,林云芳,朱忠杰,续春荣,赵明,张崇阳,刘绮亮.Study on electric variations of media in epicentral area by geomagnetic transfer functions[J].地震学报(英文版),1995,8(3):413-418. |
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| 作者姓名： | 曾小苹 林云芳 朱忠杰 续春荣 赵明 张崇阳 刘绮亮 |
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| 作者单位： | Xiao-Ping ZENG; Yun-Fang LINI; Zhong-Jie ZHU;ChunRong XU; Ming ZHAO;Chong Yang ZHANG; and Qi-LiangLIU;(Institute of Geophysics，State Seismological Bureau，Beijing 100081，China)(Seismological Bureau of Gansu Province，Lanzhou 730000，China)(Institute of C |
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| 摘 要： | ＳｔｕｄｙｏｎｅｌｅｃｔｒｉｃｖａｒｉａｔｉｏｎｓｏｆｍｅｄｉａｉｎｅｐｉｃｅｎｔｒａｌａｒｅａｂｙｇｅｏｍａｇｎｅｔｉｃｒａｎｓｆｅｒｆｕｎｃｔｉｏｎｓＸｉａｏ－ＰｉｎｇＺＥＮＧ；（曾小苹）Ｙｕｎ－ＦａｎｇＬＩＮＩ；（林云芳）Ｚｈｏｎｇ－ＪｉｅＺＨ...
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| 收稿时间： | 8 January 1994 |
| 修稿时间： | 5 October 1994 |
Study on electric variations of media in epicentral area by geomagnetic transfer functions |
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| Xiao-Ping Zeng, Yun-Fang Lin, Zhong-Jie Zhu, Chun-Rong Xu, Ming Zhao, Chong-Yang Zhang and Qi-Liang Liu.Study on electric variations of media in epicentral area by geomagnetic transfer functions[J].Acta Seismologica Sinica(English Edition),1995,8(3):413-418. |
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| Authors: | Xiao-Ping Zeng Yun-Fang Lin Zhong-Jie Zhu Chun-Rong Xu Ming Zhao Chong-Yang Zhang and Qi-Liang Liu |
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| Affiliation: | (1) Institute of Geophysics, State Seismological Bureau, 100081 Beijing, China;(2) Seismological Bureau of Gansu Province, 730000 Lanzhou, China;(3) Institute of Crustal Dynamics, State Seismological Bureau, 100085 Beijing, China |
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| Abstract: | Taking the graph of the apparent resistivity Pyx in Lanzhou area, its geomagnetic transfer function variations andthe investigation of moderate-strong local earthquakes as example and from.the viewpoint of seismomagnetic effect,the authors found that subterranean conductivity values might be applied to the division of Lanzhou areafrom the surface downward into four layers, i. e., the anomalous, the transitional,the non-anomalous and theanomalous layer. Only the transfer function modular |A| and |B|,magnetic azimuth ap with its variance ap,and the total variance yi in the anomalous layers showed obvious anomalies with time changes. Thus, it could beconjectured that the anomalous layer was closely associated with the anisotropic variations of conductivity of thesubterranean media in the seismicity area.This phenomenon might provide a way to the further study of itsmechanism. It is needed to study the inherent connotation deeply. |
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| Keywords: | geomagnetic pulsation apparent resistivity anomalous layer electric variation of media |
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