吉林小梨河金矿床地质特征及找矿标志

小梨河金矿是吉林省发现的一个重要的金矿床,处于双河镇—二道甸子金成矿带的西部,石炭系下统鹿圈屯组地层是矿体的主要赋存部位,绢云母石英片岩、钙质片岩、变质流纹质凝灰岩夹大理岩是其主要的岩石组合特征.矿体呈扁豆状和脉状产出,属于小型规模,区内断裂构造对矿体起着明显的控制作用,和脉岩有着密切的空间关系,成因类型为含石英脉贫硫化物蚀变岩型金矿床,下文对该矿地质特征进行分析,并总结其找矿标志,希望能为该区同类型矿床的寻找工作提供一些参考作用.

Geological characteristics and prospecting criteria of Xiaolihe gold deposit,Jilin Province

Xiaolihe gold deposit is an important gold deposit found in Jilin Province,which is located in the west of the shuanghezhen Erdaodianzi gold metallogenic belt.The lower Carboniferous Luquantun formation is the main occurrence site of the ore body.Sericite quartz schist,calcareous schist and metamorphic rhyolite tuff with marble are the main rock combination characteristics.The ore body is in lenticular and vein shape,which belongs to a small scale.The fault structure in the area plays an obvious role in controlling the ore body and has a close spatial relationship with vein rock.The genetic type is quartz vein poor sulfide altered rock type gold deposit.The geological characteristics of the deposit are analyzed in the following,and its prospecting indicators are summarized,hoping to provide some reference for the exploration of the same type of deposit in the area Examination function.