河南省西峡县石门沟钼矿成矿特征与成因分析  

Metallogenic Features and Genetic Analysis of Shimengou Mo Deposit in Henan Province

作　　者：吉恒召[1] 闫贺龙[1] 汤清龙[1] 牛磊[1] 李娇艳[1] 刘菲[1] 

机构地区：[1]河南省地质矿产勘查开发局第一地质勘查院,河南郑州450001

出　　处：《资源导刊（地球科技版）》2013年第7期48-50,54,共4页

摘　　要：石门沟钼矿床位于东秦岭北坡的二郎坪群地质体内，处于朱夏断裂第二隆起带与瓦穴子断裂带交汇部位。矿体赋存于二长花岗岩体的内部或外接触带中，沿岩体呈层状、似层状、脉状分布，自岩体中心向外有环带状蚀变分带现象。矿体是由富含Mo元素的花岗质岩浆，遵循由基性向酸性正向演化的规律，后又经历岩浆结晶分异、同化混染作用，形成高中温纵横交错的含钼脉体或含钼花岗岩体。矿床成因类型为岩浆型、热液充填石英脉型辉钼矿床。The Shimengou molybdenum deposit is located in the Erlangping Terrane of northern slope of east Qinling Mountains, which is formed between the second uplift of Zhuxia Fault and Waxuezi fault belt. The main ore occurs in the internal or external adamellite contact zone. It is along the strata form, quasi strata form and vein distribution, from the center of the rock orebody to outwards forming circle-type alternation. The Granitic magma, which is rich in molybdenum, follows by basic to acid positive evolution rule, after crystal fractionation and assimilation, forming the high and medium temperature crisscross molybdenum containing veins or Molybdenum granite. Genetic type of ore deposit is magma type and hydrothermal quartz vein type.

关 键 词：钼矿 二长花岗岩 蚀变分带 岩浆型 热液充填 

分 类 号：P618.650.5[天文地球—矿床学]