| 河北省丰宁县茶棚银矿地质、地球物理特征及找矿意义 |
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| 引用本文： | 郭长华,高明,张翔军,高州,孟令革,高雄,李会凯.河北省丰宁县茶棚银矿地质、地球物理特征及找矿意义[J].矿产与地质,2009,23(5):462-468. |
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| 作者姓名： | 郭长华 高明 张翔军 高州 孟令革 高雄 李会凯 |
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| 作者单位： | 1. 天津华北地质勘查总院,天津,300181
2. 天津华北地质勘查局519大队,河北,保定,071051 |
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| 摘 要： | 茶棚银矿位于河北省北部坝上草原向山区过渡地带，风成砂覆盖严重，示矿标志不明显，地表找矿难度大；地表矿体断续出露，而深部银矿体主要以隐伏矿体的形式赋存于近南北向展布的构造破碎带中，数量明显增多、品位变富、厚度变大；在这种特殊的景观地质特征下，利用激电中梯扫面，可发现厚覆盖状态下构造矿化蚀变带，利用EH4连续导电率测量可厘定矿化蚀变带的规模、产状并可提供隐爆角砾岩体等深部控矿地质信息，利用可控源音频大地电磁测深的中低阻陡变带和中阻带，特别是陡变带中的转折部位（形态呈耳状部位）可具体定位银矿体的赋存空间。
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| 关 键 词： | 景观地质特征 构造蚀变破碎带 EH4连续电导率测量 可控源音频大地电磁测深 充电率 中低阻带 河北省丰宁县 茶棚 |
The Geologic,Geophysical Feature and Mineral Indicator of Chapeng Silver Mine in Fengning ,Hebei Province |
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| GUO Chang-hua,GAO Ming,ZHANG Xiang-jun,GAO Zhou,MENG Ling-ge,GAO Xing,LI Hui-kei.The Geologic,Geophysical Feature and Mineral Indicator of Chapeng Silver Mine in Fengning ,Hebei Province[J].Mineral Resources and Geology,2009,23(5):462-468. |
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| Authors: | GUO Chang-hua GAO Ming ZHANG Xiang-jun GAO Zhou MENG Ling-ge GAO Xing LI Hui-kei |
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| Institution: | GUO Chang-hua ,GAO Ming ,ZHANG Xiang-jun ,GAO Zhou, MENG Ling-ge,GAO Xing ,LI Hui-kei (1. Tianjin Geological Exploration General Instiute of NCGEB,Tianjin 300181 ,China; 2.519 Group of Tianjin North China Geologic Exploration Bureau, Baoding , Hebei , 071051 ) |
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| Abstract: | Chapeng silver mine is situated in the transitional area from Bashang pasture to mountain regeion in northern Hebei. The place is heavily covered by windblown sand, so the mineral indicator is not obvious and the difficulty of surface prospecting is high. In the area, orebodies emerge interruptedly on the surface, while in the deep the silver orebodies as concealed deposits mainly exist in the near north-south trending structural crush belt; The quantity of the orebodies increases obviously , the grade turns richer and the thickness turns larger. We can find the structural mineralized alteration belt under thick covering by central gradient array method. By structural mineralized alteration belt we can find out the size, attitude of the mineralized alteration belt, and provide the deep geologic information of ore-controlling such as the under-explosive breccia body. Through earth electromagnetic sounding of origin controllable audio we can locate the existing space of the silver orebodies by the middle-low resistivity steep-variance zone and the middle resistivity zone, especially the converting place （the ear-shape place）. |
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| Keywords: | spectacle geologic feature structural mineralized alteration belt structural mineralized alteration belt earth electromagnetic sounding of origin controllable audio charge rate middle-low resistivity zone Chapeng |
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