熊耳山月亮沟—铁炉坪银 - 金多金属矿田构造控矿特征及成矿规律研究

厚生 徐(河南发恩德矿业有限公司，中国;)
明建 杨(内蒙古自治区岩浆活动成矿与找矿重点实验室，中国;)

摘要

熊耳山矿集区地处秦岭造山带东部，印支-燕山期地幔与地壳相互作用导致区内出现大规模的岩浆活动和构造运动，从而形成分布众多的不同期次和规模的贵金属及有色金属矿床。月亮沟—铁炉坪银-金多金属矿田为熊耳山矿集区重要组成部分，位于熊耳山变质核杂岩内部太华群变质基底之上，主要受NE-NNE向为主的断裂控制。控矿断裂以多期活动并伴有多级别派生构造为特色，断裂构造叠加复合控矿特征明显。NE向断裂为区内一级构造单元，具有近平行等间距的分布特征，控制区内主要构造格局。区内有三种构造控矿类型:缓倾斜石英铜金矿脉、缓倾斜钾化构造蚀变岩型金矿脉及陡倾斜石英-碳酸盐型Ag(/Au)-Pb-Zn矿脉。

关键词

控矿规律；构造应力场；缓倾斜金矿脉；缓倾斜铜金矿脉；月亮沟-铁炉坪矿田；熊耳山矿集区

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DOI: http://dx.doi.org/10.12345/smg.v7i5.31661