湖南省宜章县一六镇地下热水资源勘查综合物探应用效果分析  

Comprehensive geophysical exploration effect analysis of yiliu underground hot water resources exploration in yizhang county,hunan province

作　　者：郭海 李波 王兆龙 王康盛 覃永炎 朱天林 GUO Hai;LI Bo;WANG Zhao-long;WANG Kang-sheng;QIN Yong-yan;ZHU Tian-lin(Hunan Xiangnan Geological Survey Institute,Chenzhou423000;Hunan Institute of Geophysical and Geochemical Exploration,Changsha 410116)

机构地区：[1]湖南省湘南地质勘察院,湖南省郴州423000 [2]湖南省地球物理地球化学勘查院,长沙410116

出　　处：《矿产勘查》2019年第8期2104-2112,共9页Mineral Exploration

摘　　要：湖南宜章一六镇地下热水资源丰富,现过度密集开采已使资源出现严重危机。为查清地热资源分布情况,通过在控制区范围内地表采用井字型剖面布置高密度和激电测深电法同步勘查的物探工作方法,采用浅孔初步验证物探工作成果,结合浅孔水文测井成果更近一步实施深孔验证的方式。初步建立起该区物探地热勘查模式:"三高一低",即是低视电阻率,浅部热水高温,高极化率异常,深部热水高温。一六热水与大东山岩体和地层构造接触带密切相关,因此在选区上,必须选在反映岩体或接触带周围低视电阻率、高视极化率异常区。Yi Liu is rich in underground hot water resources,and the over-intensive exploitation has caused a serious resource crisis. In order to find out the distribution of geothermal resources,the geophysical exploration method of high-density resistivity double cross shaped profile layout and synchronous exploration by IP sounding method is adopted in the surface of the control area. The geophysical exploration results are preliminarily verified by shallow holes,and the deep hole verification is further implemented by combining the hydrological logging results of shallow holes. The geophysical geothermal exploration model in this area is preliminarily established: "three high and one low",namely,low apparent resistivity and high temperature of shallow hot water;High polarizability anomaly,high temperature of deep hot water. The hot water is closely related to the contact zone between the dadongshan rock mass and the stratigraphic structure. Therefore,in the selection area,it must be selected in the abnormal area reflecting the low apparent resistivity and high apparent polarizability around the rock mass or the contact zone.

关 键 词：高密度物探异常 激电物探异常 水文测井 地热勘查模式 

分 类 号：P641[天文地球—地质矿产勘探]