| 物化探综合信息找矿方法在萤石矿找矿中的应用 |
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| 作者姓名： | 栗克坤 陈新立 商朋强 于雪良 韩志坤 魏凡超 刘增政 |
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| 作者单位： | 1.中化地质矿山总局河南地质局,郑州 450011; 2.中化地质矿山总局化工地质调查总院,北京 100013 |
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| 基金项目： | 中国地质调查局“东部地区硼磷萤石等重要非金属矿资源调查(编号: DD20160057)”和“江西赣南—福建浦城地区战略性萤石硼资源调查(编号: DD20190816)”项目联合资助 |
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| 摘 要： | 福建光泽地区是闽北地区重要的萤石矿成矿远景区,具有寻找隐伏—半隐伏萤石矿的潜力,但是目前该区隐伏—半隐伏萤石矿找矿成果较少。通过对福建光泽地区I号萤石矿预测区开展物化探综合信息找矿方法应用,探讨物化探综合信息找矿方法在隐伏—半隐伏萤石矿找矿中的应用效果。结果表明: 区域水系沉积物测量和大比例尺化探剖面测量圈出的F、Ca等综合异常信息可协助筛选、确定萤石矿找矿目标区; 将高精度磁法测量与视电阻率联合剖面测量相结合,可进一步判断萤石矿控矿构造的位置和规模; 高密度电阻率法测量可协助确定控矿构造的深部延伸情况。地表检查和深部钻探验证表明: 区域化探、高精度磁法测量、视电阻率联合剖面测量和高密度电阻率法测量等物化探综合信息找矿方法组合,可指导隐伏—半隐伏萤石矿的找矿工作。
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| 关 键 词： | 萤石矿 高精度磁法测量 视电阻率联合剖面测量 高密度电阻率法测量 闽北光泽地区 |
| 收稿时间： | 2019-04-16 |
Application of the prospecting method of geophysical and geochemical integrated information in the exploration of fluorite deposits |
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| Authors: | LI Kekun CHEN Xinli SHANG Pengqiang YU Xueliang HAN Zhikun WEI Fanchao LIU Zengzheng |
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| Institution: | 1. Henan Geological Bureau, China Chemical Geology and Mine Bureau, Zhengzhou 450011, China; 2. General Institute of Chemical Geology Survey, China Chemical Geology and Mine Bureau, Beijing 100013, China |
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| Abstract: | Guangze area is an important fluorite deposit metallogenic prospective area in North Fujian, with great potential of prospecting the concealed-semi-concealed fluorite deposits. But, until now, the exploration of this kind of fluorite deposits is not effective in this area. In this paper, the authors discussed the combination of effective geophysical and geochemical prospecting methods in exploration of these fluorite deposits in No. 1 prospective area in Guangze area. The results show that the integrated elemental anomalies (e.g. F, Ca), through regional stream sediments and large-scale geochemical exploration, can be used to screen and confirm the prospecting target area of fluorite deposits. The combination of high precision magnetic survey and apparent resistivity joint section can further determine the location and scale of the controlling structure of fluorite deposits. Besides, the high-density resistivity can ascertain the deep extension of ore-controlling structures. The integrated information of geophysical and geochemical prospecting, such as regional geochemical prospecting, high precision magnetic survey, apparent resistivity joint section and high-density resistivity can be used to detect the concealed-semi-concealed fluorite deposits. |
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| Keywords: | fluorite deposits high precision magnetic survey apparent resistivity joint section high density resistivity Guangze area of North Fujian |
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