印尼西加里曼丹省鲁马金矿区地球化学特征及找矿前景  

Geochemical Characteristics and Prospecting Potential of Luma Gold Mining Area in West Kalimantan Province,Indonesia

作　　者：王纪昆 

机构地区：[1]天津华北地质勘查总院

出　　处：《现代矿业》2017年第5期26-30,67,共6页Modern Mining

基　　金：国外矿产资源风险勘查专项(编号:201210A00200202)

摘　　要：鲁马金矿区位于加里曼丹重要的金成矿区带内,区内广泛发育第三系火山岩系,第三纪中—酸性侵入岩活动强烈,NW向断裂构造发育。在分析区域地质背景、矿区地质特征的基础上,结合区域成矿地质条件、元素共生组合规律以及1∶50 000水系沉积物测量成果,圈定了Au-BiMo-W、Ni-Cr-As-Sb 2个水系沉积物综合异常带。分析表明:(1)Au-Bi-Mo-W综合异常带以Au为主,具有10处浓集中心,Au异常具有强度高、规模大、连续性好、浓度分带清楚、高值点及浓集中心众多等特点;(2)浓集中心主要分布于鲁马山附近,在多个浓集中心附近发现有砂金矿点和蚀变矿化带,矿区具备寻找残坡积型砂金矿、河流冲积型砂金矿和石英脉型金矿的良好前景,值得进一步开展地质勘查工作。The Luma gold mining area is located in the area of the gold mineralization zone, which is an important gold mineralization zone in West Kalimantan Province, Indonesia. The Tertiary volcanic rocks is extensively developed in the area, the tectonic rocks in the Tertiary are strong, NW-trending tectonic is developed. Based on analyzing the regional geological background, geological characteristics of the mining area, combining with regional metallogenic conditions, element association regularities and 1：50 000 stream sediment survey data,the Au-Bi-Mo-W and Ni-Cr-As-Sb stream sediment synthetic anomaly belts are delineated. The analysis results show that：（1）the Au-Bi-Mo-W synthetic anomaly belt is mainly for Au ,and with 10 concentration centers, the Au anomaly with the characteristics of high strength, large scale, good continuity, clear concentration zoing, many high anomaly value points and concentration centers;（2）the concentration centers are mainly distributed near the Luma Mountains, gulch gold points and altered mineralized belt are found near the concentration centers, the prospecting potential of residual product sand gold deposit, river alluvial sand gold deposit and quartz vein type gold deposit in the mining area are good, therefore, the mining area is worth conducting further geological and exploration work.

关 键 词：金矿 区域地质背景 地质特征 水系沉积物测量 综合异常 找矿前景 

分 类 号：P618.51[天文地球—矿床学]