| 综合物探方法在覆盖区找矿中的应用——以皖东五河金矿整装勘查为例 |
| |
| 作者姓名： | 张家嘉 张顺林 汪青松 顾大年 |
| |
| 作者单位： | 安徽省勘查技术院,合肥 230031 |
| |
| 基金项目： | 安徽省地质勘查基金“五河县荣渡—小溪集金及多金属矿整装勘查(编号2010-2-34)”项目资助 |
| |
| 摘 要： | 五河地区处于郯庐断裂带南段,有大面积第四系覆盖且构造复杂,基础地质调查工作难以开展,长期以来没有取得找矿突破。为获取地质找矿信息,利用综合物探方法并结合区域地质特征解译异常有效地筛选矿致异常,提高钻探验证的成功率。通过开展中大比例尺的综合物探测量,研发了“中大比例尺组合”覆盖区基岩地质构造探测技术,并结合“一选三定四阶段反复循环”覆盖区综合勘查模式,克服了复杂构造条件下覆盖区深部寻找金矿的难题,取得了重要找矿成果: 已发现中型规模金矿床2处、小型规模金矿床1处,总规模已达大型,实现了安徽省境内郯庐断裂带金矿找矿的重大突破。中大比例尺综合物探测量和“一选三定四阶段反复循环”的勘查模式对覆盖区金多金属矿勘查具有重要的参考意义。
|
| 关 键 词： | 覆盖区 综合物探方法 五河 郯庐断裂带 |
| 收稿时间： | 2020-03-24 |
Application of comprehensive geophysical prospecting method in ore prospecting in coverage area: A case study of integrated survey area of Wuhe Gold Mine in Eastern Anhui |
| |
| Authors: | ZHANG Jiajia ZHANG Shunlin WANG Qingsong GU Danian |
| |
| Institution: | Institute of Exploration Technology of Anhui Province, Hefei 230031, China |
| |
| Abstract: | Wuhe area is located in the southern section of Tan-Lu fault zone,and most of the area is covered by the Quaternary and has complex structures. It is difficult to carry out basic geological survey,and no prospecting breakthrough has been made for a long time. In order to obtain geological prospecting information, comoined with regional geological features the authors have used the comprehensive geophysical method to interpret the anomalies, which can screen the mine-induced anomalies effectively and improve the success rate of drilling verification. By carrying out medium and large scale complex geophysical detection, the authors have developed the medium and large scale combination bedrock detection technology for geological structures in the coverage area. And combined with the repeatedly circulation of three or four phases in one selection comprehensive exploration model of the coverage area, the difficulty of finding gold mines in the deep part of the coverage area under complex structural conditions has been overcome and important prospecting achievements have been made. Two medium-sized gold mines and one small-sized gold mine have been found, and the total scale has reached a large size. A major breakthrough in finding gold mines in Tan-Lu fault zone in Anhui Province has been realized. The medium and large scale complex geophysical detection and the repeatedly circulation of three or four phases in one selection exploration model have important significance in the exploration of gold-polymetallic deposits in thick coverage areas. |
| |
| Keywords: | coverage areas comprehensive geophysical methods Wuhe Tan-Lu fault zone |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
