吉林省安图县大兴金、铜多金属矿床地质特征及找矿标志

Geological features and prospecting criteria of Daxing goldand copper polymetallic deposit in Antu County, Jilin Province

本文通过对吉林省安图县大兴金铜多金属矿体的地质特征及矿床成因进行研究,目前为止在区内已圈定矿化蚀变带2条,均呈北东向展布。重新圈定金矿体4条,矿床类型为小型,推断的资源量(333)矿石量98.07 kt,金金属量174.79 kg。基本查明了矿体的特征与矿体分布规律,金矿(化)体赋存与北东向矿化蚀变带内,其围岩为绢云片岩。矿体形态相对简单,矿体多呈脉状,矿体厚度变化较大,品位变化较均匀。建立找矿标志,开展成矿预测,对矿床进一步勘查工作具有一定的指导意义。

In this article,the author studies the geological features and genesis of the Daxing gold copper polymetallic ore body in Antu County,Jilin Province.Up to now,two mineralization and alteration zones have been delineated in the area,all of which are distributed in a northeast direction.Redefining 4 gold ore bodies,the deposit type is small,and the inferred resource amount(333)is 98.07 kt of ore and 174.79 kg of gold metal.The characteristics and distribution patterns of the ore bodies have been basically identified.The gold(mineralized)body occurs in the northeast mineralized alteration zone,and its surrounding rock is sericite schist.The shape of the ore body is relatively simple,and the ore body is mostly in a vein shape.The thickness of the ore body varies greatly,and the grade change is relatively uniform.Establishing prospecting indicators and conducting mineralization prediction have certain guiding significance for further exploration of mineral deposits.