河南省西峡县高庄金矿床成矿地质条件、矿床成因及找矿前景

摘要

Gaozhuang gold deposit is located in the west part of Erlangping Terrane of North Qinling tectonic subbelt in Qinling orogenic belt.Gold mineralization veins and gold orebodies are produced in large numbers in the mining area.The ore types are quartz vein and structural altered spilite.Gold mineralization is controlled by both of structure and stratum.The ore-controlling structure is divided into three levels, regional deep fault,ductile shear belt and broken fracture belt.These different level structures play the role of ore-transimitting, ore-distributing and ore-containing individually.The metallogenic geology background,host rock(low-grade metamorphic rock),ore-controlling factors and gold occurrence status of the deposit are basically similar to the characteristics of orogenic gold deposits.The deposit genesis is belonged to the orogenic type.There is a good prospecting potential in the deep part of the mining area (vertical depth 1-2km) and its periphery.%高庄金矿位于秦岭造山带、北秦岭构造亚带二郎坪地体的西段.矿区内金矿(化)脉及金矿体成群产出,矿石类型有石英脉型及构造蚀变细碧岩型等两种;成矿受构造和地层的双重控制.控矿构造有区域性深大断裂、韧性剪切带及破碎带等3级,这些不同级别的构造分别起着导矿、配矿和容矿的作用.该矿床的成矿地质背景、赋矿岩石(低级变质岩)特征、控矿因素以及矿石中金的赋存状态等与造山型金矿的特征基本相似,矿床的成因类型属造山型金矿,矿区的深部(垂直深度1~2km)及周边具有较好的找矿前景.