| 伊通盆地西北缘断裂乐山南段电磁异常特征与地质单元 |
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| 引用本文： | 孙晓东,曾昭发,王学刚,于清水,张建民,刘卓.伊通盆地西北缘断裂乐山南段电磁异常特征与地质单元[J].世界地质,2018,37(1):250-258. |
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| 作者姓名： | 孙晓东 曾昭发 王学刚 于清水 张建民 刘卓 |
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| 作者单位： | 1. 吉林大学地球探测科学与技术学院, 长春 130026;2. 国土资源部应用地球物理重点实验室, 长春 130026;3. 中国电力工程顾问集团东北电力设计院有限公司, 长春 130021 |
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| 基金项目： | 吉林省长白山玄武岩地区地热资源调查（2014-13）. |
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| 摘 要： | 本文运用可控源音频大地电磁测深(CSAMT)方法对伊通盆地西北缘断褶带进行勘探。将所得的电性剖面与区域地质地球物理资料进行有机结合后,对研究区域进行了综合地质解释,发现研究区由大黑山隆起、西北缘断褶带及伊通盆地三个地质单元构成。通过电性剖面特征共划分出两条北东向的断裂(F_1,F_2),一条近东西向的断裂(F_3),确定了各地层结构,以及地层单元间的接触关系为构造接触。
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| 关 键 词： | 伊通盆地 断褶带 电性剖面 地质单元 CSAMT |
| 收稿时间： | 2017-05-16 |
| 修稿时间： | 2017-11-27 |
Electromagnetic anomalies and geological units in southern Leshan segment of the northwestern margin of Yitong Basin |
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| SUN Xiao-dong,ZENG Zhao-fa,WANG Xue-gang,YU Qing-shui,ZHANG Jian-min,LIU Zhuo.Electromagnetic anomalies and geological units in southern Leshan segment of the northwestern margin of Yitong Basin[J].World Geology,2018,37(1):250-258. |
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| Authors: | SUN Xiao-dong ZENG Zhao-fa WANG Xue-gang YU Qing-shui ZHANG Jian-min LIU Zhuo |
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| Institution: | 1. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China;2. Ministry of Land and Resources Key Laboratory of Applied Geophysics, Changchun 130026, China;3. China Power Engineering Consulting Group Northeast Electric Power Design Institute Co. Ltd, Changchun 130021, China |
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| Abstract: | The aim of the study is to use the CSAMT method to explore the fault-fold belt in the northwestern margin of Yitong Basin. Comprehensive geologic interpretation of the study area is achieved on the basis of the combination of the electrical profile obtained from each survey line and the regional geophysical data. The result shows that the study area consists of three geological units, e.g. the Daheishan uplift,the fold belt in the northwestern margin and the Yitong Basin. Two NE-trending faults (F1 and F2) and one nearly EW-trending fault (F3) are delineated by the electrical profile features. The stratigraphic framework is subsequently defined and tectonic contact between the stratigraphic units is identified. |
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| Keywords: | Yitong Basin fault-fold belt electrical profile geological unit CSAMT |
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