洛南县回马坪—孙家沟地区钼矿地质特征及找矿标志

Geological characteristics and prospecting criteria of molybdenum deposit in Huimaping-Sunjiagou area, Luonan County

洛南县回马坪-孙家沟地区钼矿受北北西向-近南北向和近东西向两组韧-脆性剪切断裂构造控制,主要由含钼石英脉、(方解石)长石石英脉、黑云斜长片麻岩围岩夹层及含矿脉旁侧蚀变片麻岩组成。文章在系统分析矿床成矿地质背景、矿床地质特征基础上,总结了矿床主要控矿因素,归纳了主要找矿标志,为进一步在该区找矿指明了方向。

Molybdenum deposit in Huimaping-Sunjiagou area of Luonan County is controlled by two groups of ductile-brittle shear fault structures,which are NNW-NNE trending and EW-trending.It is mainly composed of molybdenum-bearing quartz vein,calcite and SPAR quartz vein,the surrounding rock interlayer of black plagiosclase gneiss and the alteration gneiss beside the ore-bearing vein.Based on the systematic analysis of the metallogenic geological background and geological characteristics of the deposit,this paper summarizes the main ore-controlling factors of the deposit,summarizes the main prospecting indicators,it points out the direction for further prospecting in this area.