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高密度电阻率法与CSAMT法在江西会昌县坝背地热勘查中的综合探测

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付光明, 黄进调, 刘阳, 李晓兵, 陈国玉, 黄艺. 2019. 高密度电阻率法与CSAMT法在江西会昌县坝背地热勘查中的综合探测[J]. 中国地质, 46(4): 927-936. doi: 10.12029/gc20190421
引用本文: 付光明, 黄进调, 刘阳, 李晓兵, 陈国玉, 黄艺. 2019. 高密度电阻率法与CSAMT法在江西会昌县坝背地热勘查中的综合探测[J]. 中国地质, 46(4): 927-936. doi: 10.12029/gc20190421
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FU Guangming, HUANG Jintiao, LIU Yang, LI Xiaobing, CHEN Guoyu, HUANG Yi. 2019. Multi-electrode resistivity method and CSAMT method in geothermal exploration of Babei area in Huichang County, Jiangxi Province[J]. Geology in China, 46(4): 927-936. doi: 10.12029/gc20190421
Citation: FU Guangming, HUANG Jintiao, LIU Yang, LI Xiaobing, CHEN Guoyu, HUANG Yi. 2019. Multi-electrode resistivity method and CSAMT method in geothermal exploration of Babei area in Huichang County, Jiangxi Province[J]. Geology in China, 46(4): 927-936. doi: 10.12029/gc20190421
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高密度电阻率法与CSAMT法在江西会昌县坝背地热勘查中的综合探测

  • 1.

    东华理工大学地球物理与测控技术学院, 江西 南昌 330013

  • 2.

    中国地质科学院, 北京 100037

  • 3.

    中国地质调查局-中国地质科学院地球深部探测中心, 北京 100037

  • 4.

    江西省煤田地质局普查综合大队, 江西 南昌 330001

  • 基金项目:
    中国地质调查局项目（DD20160082）、国家自然科学基金项目（41574133）、国家重点研发计划（2016YFC0600201）、中国地质科学院基本科研业务费专项经费（YYWF201526）、江西省国土资源厅地质勘查基金项目（20163002）联合资助
详细信息
    作者简介: 付光明, 男, 1990年生, 博士生, 从事多元地球物理三维成矿预测, E-mail:gmf2016GP@163.com
    通讯作者: 黄进调, 男, 1988年生, 工程师, 从事矿产资源勘查和地质灾害隐患调查, E-mail:597902412@qq.com

  • 中图分类号: P622+.2;P314.1

Multi-electrode resistivity method and CSAMT method in geothermal exploration of Babei area in Huichang County, Jiangxi Province

  • 1.

    School of Geophysics and Measurement-control Technology, East China Institute of Technology, Nanchang, 330013, Jiangxi, China

  • 2.

    Chinese Academy of Geological Sciences, Beijing, 100037, China

  • 3.

    China Deep Exploration Center, China Geological Survey & Chinese Academy of Geological Sciences, Beijing, 100037, China

  • 4.

    Jiangxi Coal Geology Bureau Comprehensive Survey Party, Nanchang 330001, Jiangxi, China

  • Fund Project: Supported by Geological Survey Project (No. DD20160082); National Natural Science Foundation of China (No. 41574133); National Key Research and Development Program of China (No. 2016YFC0600201); Special Funds for Basic Scientific Research Operating Costs of the Chinese Academy of Geological Sciences (No. YYWF201526) and Geological Exploration Fund Project of Jiangxi Land and Resources Department (No. 20163002)
More Information
    Author Bio: FU Guangming, male, born in 1990, doctor candidate, mainly engages in three-dimensional metallogenic prediction of multivariate geophysics; E-mail: gmf2016GP@163.com .
    Corresponding author: HUANG Jintiao, male, born in 1988, bachelor, engineer, mainly engages in exploration of mineral resources and investigation of potential geological hazards; E-mail:597902412@qq.com

    摘要

  • 地热资源是一种绿色低碳、极具竞争力的可再生能源。江西省会昌县坝背地区断裂构造密集，地热异常广泛发育。为了查明勘查区各断裂构造的产状、规模及深部变化特征，为寻找地热水钻孔布置提供依据，项目组首先在已知温泉位置布置3条高密度试验测线，接着在已知温泉位置以南布置4条高密度测线，然后在高密度电阻率法资料初步解释成果的基础上再施工可控源音频大地电磁测深法（CSAMT），得出其中两条深大断裂是温泉主要的导水导热构造、断裂深切至基底界面、基底界面起伏明显的结论。同时圈定了4个低阻异常区，其中低阻异常范围最大的区域长约1000 m，宽约240 m，高约200 m，是含水最为有利区域，亦是寻找地热水的直接依据，建议在其正上方布设钻孔进行验证，孔深约800 m，满足深大断裂和基底对低阻区的深度控制。

    Geothermal resources are a kind of green, low carbon and highly competitive renewable energy. The Babei area of Huichang County in Jiangxi Province is characterized by dense faults. In order to find out the characteristics of the attitude, scale and deep change of the fault structure in the exploration area so as to provide a basis for finding the layout of geothermal water drilling, the authors arranged three multi-electrode resistivity method test lines at the location of the known hot springs, and determined the validity of the geophysical method and the water guide fault in the survey area according to the principle of the shallow to deep exploration from the known to the unknown. On the basis of the preliminary interpretation results of multielectrode resistivity method, the controllable source audio magnetotelluric sounding method (CSAMT) was constructed according to the preliminary interpretation of multi-electrode resistivity method. It is concluded that two of the deep faults are the main thermal conductive structures in hot springs, that the faults cut deeply into the basement interface, and that the basement interface undulates obviously. At the same time, four low resistivity anomalous zones were delineated, of which the largest one is about 1000m in length, 240m in width and 200 m in height. It is the most advantageous water-bearing area and the direct basis in the search for geothermal water. It is suggested that drilling holes should be laid directly above the anomalous zones for verification. The hole depth is about 800m, which meets the depth control of deep and large faults and the base for low resistivity zones.

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  • 图 1  坝背地区区域地质、勘探范围及测线布置图

    Figure 1. 

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    图 2  α装置固定断面扫描示意图

    Figure 2. 

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    图 3  CSAMT法V8（一主一辅）网络化野外作业方式示意图

    Figure 3. 

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    图 4  G1线1排列数据圆滑处理前（a）后（b）对比图

    Figure 4. 

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    图 5  未经平滑处理（a）、（c）和处理后（b）、（d）视电阻率和相位曲线对比图

    Figure 5. 

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    图 6  高密度试验测线视电阻率断面图

    Figure 6. 

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    图 7  高密度测线电阻率断面图

    Figure 7. 

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    图 8  可控源测线视电阻率断面

    Figure 8. 

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    表 1  CSAMT工作频率

    Table 1.  CSAMT working frequency list

    下载: 导出CSV
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收稿日期:  2018-12-16
修回日期:  2019-05-16
刊出日期:  2019-08-25

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