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岭褶皱带接壤部位。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砾岩，长期的氧化淋滤，石英脉中的金发生迁移，在构造泥砾岩中发生次生富集，形成金的富矿体。构造泥砾岩是重要的找矿标志。
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.
出处
《黄金地质》
1999年第1期45-50,共6页
Gold Geology
关键词
金矿床
矿床成因
构造泥砾岩
小秦岭
gold deposit, tectonic mudstone conglomerate, leaching oxidation, secondary enrichment, Henan
