吉林延边地区金(铜)矿床地质特征及找矿方向

Geological Characteristics and Prospecting Direction of Gold(Copper)Deposit in Yanbian Area,Jilin Province

吉林延边地区为环太平洋成矿带外带的一个重要金属成矿区,区内已发现小西南岔等斑岩型金(铜)矿床、刺猬沟等火山—次火山岩型金矿床。结合该区地质工作成果,对区域成矿地质背景、成矿条件进行了分析,并分别对区内斑岩型金(铜)矿、火山—次火山岩型金矿典型矿床的地质特征进行了讨论,在此基础上,对区域找矿方向进行了探讨,认为区域汪清火山盆地、五凤火山断陷盆地、刺猬沟—金仓火山断陷盆地及屯田营组、金沟岭组火山岩发育区,小西南岔—农坪EW向与SN向构造交汇部位为找矿有利地段。上述分析对于该区进一步布置金(铜)矿床找矿勘探工程有一定的参考价值。

Yanbian area in Jilin province is an important metal metallogenic area of outer zone of circum-pacific metallogenic belt,the porphyry gold（copper） deposit（Xiaoxinancha gold（copper） deposit） and volcanic-subvolcanic type gold deposit（Ciweigou gold deposit） are distributed in the area.Combing with the geological working results of the area,the regional metallogenic geological background,metallogenic conditions are analyzed,and the geological characteristics of the typical deposits of the porphyry gold（copper） deposit and volcanic-subvolcanic type gold deposit in the area are discussed in detail.Based on the above analysis results,the prospecting direction of the area is studied,it is show that the regional Wangqing volcanic basin,Wufeng volcanic fault basin,Ciweigou-Jincang volcanic fault basin and the volcanic rock development zone of Tuntianying formation and Jingouling formation,the intersection part of Xiaoxinancha-Nongping NW-direction structure and SN-direction structure are the favorable prospecting sections.The above analysis results related to the geological characteristics and prospecting direction of the gold（copper） deposit in Yanbian area,Jilin province can provide some reference for the further prospecting engineering of gold（copper） deposit in the area.