| 内蒙古哈达门沟金矿床钾长石化蚀变特征及其成矿意义 |
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| 引用本文： | 李强之,吴尚全.内蒙古哈达门沟金矿床钾长石化蚀变特征及其成矿意义[J].现代地质,1999,13(3):315-322. |
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| 作者姓名： | 李强之 吴尚全 |
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| 作者单位： | 地球科学与资源学院!北京100083(李强之，朱成伟)，黄金地质研究所!廊坊065000(吴尚全，刘纲) |
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| 基金项目： | 武警黄金指挥部重点科技项目 |
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| 摘 要： | 内蒙古自治区哈达门沟金矿以其特殊的钾长石化蚀变而备受注目。通过对哈达门沟金矿钾长石化蚀变特征及钾长石化形成的物理化学条件等方面的研究， 指出哈达门沟金矿石英脉旁为钾长石化而不是绢英岩化的原因是因为矿床形成部位深、形成温度较高、成矿介质偏碱性并具较大的ｍ（Ｋ＋）／ ｍ（Ｈ＋） 值。据此归纳华北地台热液金矿床的蚀变（ 矿化） 垂直分带由下而上为： 钾长石化带（ 细脉浸染型矿化）—绢英岩化带（ 蚀变岩型矿化） —硅化脉带（ 石英脉型矿化） ， 进而指出该分带模式的成矿和找矿指示意义
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| 关 键 词： | 金矿 钾长石化 围岩蚀变 |
ALTERATION FEATURES OF K\|FELDSPATHIZATION AND ITS SIGNIFICANCE TO GOLD MINERALIZATION, HADAMENGOU GOLD DEPOSIT,THE INNER MONGOLIA |
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| Li Qiangzhi\ \ Zhu Chengwei.ALTERATION FEATURES OF K\|FELDSPATHIZATION AND ITS SIGNIFICANCE TO GOLD MINERALIZATION, HADAMENGOU GOLD DEPOSIT,THE INNER MONGOLIA[J].Geoscience——Journal of Graduate School,China University of Geosciences,1999,13(3):315-322. |
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| Authors: | Li Qiangzhi\ \ Zhu Chengwei |
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| Abstract: | K\|feldspathization of Hadamengou gold deposit in the Inner Mongolia is most prominent. Based on the studies of geological features and physical\|chemical condition of K\|feldspathization, the authors point out that the alteration of Hadamengou gold deposit is K\|feldspathization, not quartz\|sericitization. The reason is that the deposit occurs in the condition of high depth, high temperature, high alkaline components, high oxygen fugacity and m (K\ )/ m (H\ ) ratio. Among them, m (K\ )/ m (H\ ) ratio took an important part in K\|feldspathization. According to K\|feldspathization altered feature and physical\|chemical quality of acidic and alkali component, we include vertical zoning of wallrock alteration(mineralization) of the hydrothermal gold deposit from lower to upper is K\|feldspathization(veinlet\|disseminated type ore)\|phyllic alteration(altered rock type ore)\|silicification(quartz vein type ore). This altered zoning pattern plays an important role in prospecting for gold deposits. |
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| Keywords: | gold deposit K\|feldspathization wallrock alteration |
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