| 时间域激电法在浅覆盖区萤石矿勘查中的应用—以河南省方城县铁炉萤石矿床为例 |
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| 引用本文： | 张参辉,李水平,白德胜,程华,曹杰,张爱玲,孙进,赵华奇.时间域激电法在浅覆盖区萤石矿勘查中的应用—以河南省方城县铁炉萤石矿床为例[J].地质与勘探,2022,58(2):369-380. |
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| 作者姓名： | 张参辉 李水平 白德胜 程华 曹杰 张爱玲 孙进 赵华奇 |
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| 作者单位： | 河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州 450001 |
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| 基金项目： | 2019年度河南省财政地质勘查项目（编号：豫自然资发［2019］22号，项目编号16）和河南省地矿局青年科技创新项目（编号：豫地矿青科创［2020］4号）联合资助 |
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| 摘 要： | 河南省方城县独树镇一带萤石矿区属于第四系浅层覆盖区。为寻找该区隐伏萤石矿床，对区域成矿条件、邻近同类型萤石矿床特征进行了分析研究，将该地区萤石矿赋矿地质体及接触带作为地球物理探测目标体，开展了时间域激发极化法(TDIP)测量。激电中梯与激电测深高低阻之间的电性变化带(或过渡带)和对应的弱极化异常特征，有效地定位和预测了覆盖区萤石矿赋矿地质体、接触带的空间分布特征及蚀变矿化特征，为钻探工程布置提供良好的地球物理信息，经钻探验证，取得了较好的找矿效果。勘查表明：时间域激发极化法在独树镇一带浅覆盖区寻找隐伏萤石矿是行之有效的，可为矿区外围或相似地区进行类比寻找同类型萤石矿床提供重要的指导或示范作用。
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| 关 键 词： | 时间域激发极化法 浅覆盖区 勘查应用 铁炉萤石矿 方城县 河南省 |
| 收稿时间： | 2021/8/10 0:00:00 |
| 修稿时间： | 2022/1/19 0:00:00 |
Application of the time-domain IP method to the exploration of concealed fluorite deposits: A case study of the Tielu fluorite deposit in Fangcheng County, Henan Province |
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| ZHANG Canhui,LI Shuiping,BAI Desheng,CHENG Hua,CAO Jie,ZHANG Ailing,SUN Jin,ZHAO Huaqi.Application of the time-domain IP method to the exploration of concealed fluorite deposits: A case study of the Tielu fluorite deposit in Fangcheng County, Henan Province[J].Geology and Prospecting,2022,58(2):369-380. |
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| Authors: | ZHANG Canhui LI Shuiping BAI Desheng CHENG Hua CAO Jie ZHANG Ailing SUN Jin ZHAO Huaqi |
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| Abstract: | The fluorite mining area in Dushu Town, Fangcheng County, Henan Province is in Quaternary shallow coverage area. In order to search for concealed fluorite deposits, the regional mineralization conditions and the characteristics of adjacent fluorite deposits of the same type were studied, and the host geological bodies and contact zones of fluorite deposits in this area were taken as the geophysics targets to conduct time-domain induced polarization measurements. The electrical change zone (or transition zone) between high and low resistance and the corresponding weak polarization anomaly feature of the IP measured using intermediate gradient array and the IP sounding, effectively locate and predict the spatial distribution and alteration mineralization of ore-bearing geological body and contact zone in the coverage area, which will provide geophysical information for drilling engineering layout. After drilling verification, good prospecting has been obtained. The exploration shows that the time-domain induced polarization method is effective in searching for concealed fluorite deposits in the shallow overburden area of Dushu Town, which can provide important guidance or demonstration for analogous prospecting of the same type fluorite deposit in the periphery of mining area or similar area. |
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