| 闽北地区萤石矿综合信息找矿方法研究 |
| 投稿时间：2021-12-02 修订日期：2022-04-05 点此下载全文 |
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| 基金项目:中国地质调查局“江西赣南-福建浦城地区战略性萤石硼资源调查(编号：DD20190816)”项目资助。第一 |
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| 中文摘要:福建邵武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,但目前该区隐伏—半隐伏萤石矿找矿成果较少。通过对福建邵武地区张厝萤石矿预测区开展物化探综合信息找矿方法应用研究,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；高精度磁法测量、视电阻率联合剖面测量可进一步判断萤石矿控矿构造的位置和规模；可控源大地音频电磁测深可协助确定控矿构造的深部延伸情况。地表检查和钻探深部验证表明：区域化探、高精度磁测、视电阻率联合剖面和可控源大地音频电磁测深等物化探综合信息找矿方法组合可指导隐伏—半隐伏萤石矿找矿工作。 |
| 中文关键词:萤石矿 视电阻率联合剖面测量 可控源大地音频电磁测深 闽北邵武地区 |
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| comprehensive information prospecting method of fluorite deposits in Northern Fujian |
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| Abstract:Shaowu county is an important fluorite deposits metallogenic prospective area in north Fujian Province, with great potential ofprospecting 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. Zhang cuoprospectivearea in Shao wu area.The results show that the integrated elemental anomalies (e.g. F. Ca), through regionalstream sediments and large-scale geochemical exploration,can be used to screen and confirm the prospecting target area of fluorite deposits.The combination of high precisionmagnetic survey and apparent resistivity joint section can further determine the location and scale of the controlling structure of fluorite deposits.Besidesthe Controlled Source Audio Magnetotelluric methodcan ascertain the deep extension of ore-controlling structures.The integrated information of geophysicaland geochemical prospecting, such as regional geochemical prospecting, high precision magnetic survey,apparent resistivity joint section and Controlled Source Audio Magnetotelluric method can be used to detect the concealed - semi-concealedfluorite deposits. |
| keywords:fluorite deposits apparent resistivity joint section Controlled Source Audio Magnetotelluric method Shaowu area of North Fujian |
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