| 丰城堡-祝家庄地区地壳偶极电测深法的定点观测 |
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| 引用本文： | 陈有发,康云生,杜学彬,陈宝智,侯康明,梁戈涑,董永德,张和全,梁戈沭,姜忠贤.丰城堡-祝家庄地区地壳偶极电测深法的定点观测[J].西北地震学报,1990,12(3):57-63. |
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| 作者姓名： | 陈有发 康云生 杜学彬 陈宝智 侯康明 梁戈涑 董永德 张和全 梁戈沭 姜忠贤 |
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| 作者单位： | 国家地震局兰州地震研究所
(陈有发，康云生，杜学彬，陈宝智，侯康明，梁戈涑，董永德，张和全，梁戈沭)，国家地震局兰州地震研究所(姜忠贤) |
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| 摘 要： | 1985～1988年在丰城堡—祝家庄地区进行了偶极法电测深观测。观测中采用供电偶极距为1000m,测量偶极距950—1000m,偶极中心间距5000—8000m。在观测期间发现地电阻率ρ_s无明显季节性变化;在距测区100公里范围内发生M≥4级地震前10天左右,ρ_s出现3—8%的变化。
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| 关 键 词： | 地壳 测深法 偶极 |
| 收稿时间： | 1989/4/5 0:00:00 |
THE REGULAR OBSERVATION OF THE DIPOLE ELECTRICAL SOUNDING OF THE CRUST AT FENG CASTLE-ZHUJIA VILLAGE |
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| Chen Youf,Kang Yunsheng,Du Xuebin,Chen Baozhi,Hou Kangming,Liang Geshu,Dong Yongde,Zhang Hequan,Liang Gezhe and Jiang Zhongxian.THE REGULAR OBSERVATION OF THE DIPOLE ELECTRICAL SOUNDING OF THE CRUST AT FENG CASTLE-ZHUJIA VILLAGE[J].Northwestern Seismological Journal,1990,12(3):57-63. |
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| Authors: | Chen Youf Kang Yunsheng Du Xuebin Chen Baozhi Hou Kangming Liang Geshu Dong Yongde Zhang Hequan Liang Gezhe and Jiang Zhongxian |
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| Institution: | Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China and Earthquake Research Institute of Lanzhou, SSB, Gansu, China |
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| Abstract: | In 1985-1988 at Minle earthquake risk region, Gansu Province, the regular measuring has been carried out by using the method of dipole electrical sounding with current electrode spacing AB=1km, receiver electrode spacing MN=0.95-1 km, central distance of dipole R=5-8 km. The results show: (1)Apparent resistivity ps does not have yearly variation; (2)The ps variation, about 10 days before the M>4.0 earthquakes, is 3-8% in range of 100 km to the observation point. |
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