内蒙古自治区马勒盖敖包金银多金属矿地质特征及找矿方向浅析

Geological characteristics and prospecting direction of the Malgai Aobao gold silver polymetallic deposit in Inner Mongolia Autonomous Region

马勒盖敖包金银多金属矿共圈定矿化蚀变带2条、1条银矿化体。蚀变带总体呈北东向延伸展布,长数百米,宽几米不等,蚀变带赋存在古生界二叠系中统哲斯组三段及北东向石英脉内。矿化蚀变主要为强褐铁矿化、高岭土化、绿泥石化并叠加后期硅化、角岩化等蚀变。本文通过研究区域地质背景、矿区地质概况及矿化体特征,总结了该区地质特征、找矿方向及成矿规律。

Two mineralized alteration zones and one silver mineralization body have been delineated in the Malagai Aobao gold silver polymetallic deposit.The weathering zone generally extends in a northeast direction,with a length of several hundred meters and a width of several meters.The weathering zone is located in the third member of the Zesi Formation in the Middle Permian of the Paleozoic and in the northeast quartz vein.Mineralization and alteration are mainly characterized by strong limonitization,kaolinite mineralization,chloritization,and later silicification and ceratopsization.This article summarizes the geological characteristics,prospecting directions,and mineralization laws of the area by studying the regional geological background,geological overview of the mining area,and characteristics of mineralized bodies.