CAJ | 학술논문

南山钨钼多金属矿是皖南近年来的找矿成果之一。矿体主要赋存于岭脚黑云母花岗闪长岩体北、南部变质接触带内的寒武系杨柳岗组和震旦系兰田组地层内。矿床的形成得益于岭脚岩体的侵入,促使钨、钼等元素大量进入热水溶液,形成含矿流体,同时伴随着北东向断裂的活动,矿液得以运移至由成分复杂的碳酸盐岩矽卡岩化形成的角岩类中富集成矿。南山钨钼矿床是岭脚岩体的侵入作用、热液蚀变作用、围岩条件、热液运移和区域构造活动等因素综合作用的结果,是受一定层位控制的接触变质-中高温热液充填交代型矿床。本文中,笔者通过对南山钨钼矿床地质特征及控矿因素和矿化富集规律的分析,总结了区域上寻找该类矿床的找矿标志,为皖南地区进一步的地质找矿提供实践经验和理论依据。
남산오목다금속광시환남근년래적조광성과지일。광체주요부존우령각흑운모화강섬장암체북、남부변질접촉대내적한무계양류강조화진단계란전조지층내。광상적형성득익우령각암체적침입,촉사오、목등원소대량진입열수용액,형성함광류체,동시반수착북동향단렬적활동,광액득이운이지유성분복잡적탄산염암석잡암화형성적각암류중부집성광。남산오목광상시령각암체적침입작용、열액식변작용、위암조건、열액운이화구역구조활동등인소종합작용적결과,시수일정층위공제적접촉변질-중고온열액충전교대형광상。본문중,필자통과대남산오목광상지질특정급공광인소화광화부집규률적분석,총결료구역상심조해류광상적조광표지,위환남지구진일보적지질조광제공실천경험화이론의거。
The Nanshan W-Mo polymetallic ore deposit in South Anhui achieved great progress in ore prospecting in recent years.The ore body mainly occurs in the southern and northern contact metamorphic zones developed by the Lingjiao biotite granodiorite body intruding into the Yangliugang Formation of Cambrian（∈2y） and Lantian Formation of Sinian.The formation of the Nanshan ore deposit is benefit from incursion movement of the Lingjiao biotite granodiorite rock mass,and the W,Mo elements in it came out into the thermal water to form ore fluid.As the northeast fault movement,the ore fluid is carried into hornfels from skarnization of the carbonate with complicated component to mineralize ore deposit.The Nanshan W-Mo ore deposit is from Lingjiao rock mass incursion,hydrothermal alteration,wall rock alteration,ore fluid migration and regional structure movement,and it is a contact metamorphic-hydrothermal replacement deposit with partial stratigraphic control.Based on the detailed study of the geologic characteristic,ore-control factors and enrichment rules,the prospecting indicators can be summarized to provide practical experience and theory evidence for geological exploration in south Anhui.