| 小秦岭五里村金矿867号脉成因研究 |
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| 引用本文： | 丁渊洪.小秦岭五里村金矿867号脉成因研究[J].黄金地质,1999,5(1):45-50. |
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| 作者姓名： | 丁渊洪 |
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| 作者单位： | 黄金第九支队 |
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| 摘 要： | 小秦岭金矿田地处华北地台华熊台缘坳陷与秦岭褶皱系的北秦褶皱带接壤部位。８６７号矿脉赋存于太古宇太华群焕池峪组深变质岩中，形成了于晚燕山期热液活动石英脉经过后期构造活动顶底板一定位置形成扁豆体状构造泥夺，长期的氧化淋滤，石英脉中的金发生迁移，在尼砾岩中发生次生富集，形成金的富矿体。构造泥夺是重要的找矿标志。
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| 关 键 词： | 金矿床 矿床成因 构造泥砾岩 小秦岭 |
THE STUDY ON GENESIS OF NO.867 VEIN IN WULICUN GOLD DEPOSIT, XIAOQINLING |
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| Ding Yuanhong.THE STUDY ON GENESIS OF NO.867 VEIN IN WULICUN GOLD DEPOSIT, XIAOQINLING[J].Gold Geology,1999,5(1):45-50. |
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| Authors: | Ding Yuanhong |
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| Abstract: | Wulicun gold deposit is located in the joint of Huaxiong plateau marginal depression and north Qinling folded belt, and the 867 vein is located in the deep metamorphic rocks of Huanchiyu group of Taihua Group. It is the result of the hydrothermal activity of late Yanshan period. Hycinth bean shaped tectonic mudstone conglomerate has been formed on the certain positions of the roof and the footwall in the quartz vein because of the late tectonic activity. During the long process of leaching oxidation, gold in the quartz vein has been transferred and is secondary enriched in the tectonic mudstone conglomerate, which has formed the rich ore body of gold. The tectonic mudstone conglomerate is an important prospecting criteria. |
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| Keywords: | gold deposit tectonic mudstone conglomerate leaching oxidation secondary enrichment Henan |
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