滇中大姚六苴铜矿成矿规律及找矿靶区圈定  

Metallogenic Regularity and Prospecting Target Delineation of Liuju Copper Deposit in Dayao County,Central Yunnan Province

作　　者：谢金云 尹佳明 XIE Jinyun;YIN Jiaming(Tengchong Hengyi Minerals Economic and Trade Co.,Ltd.;Yunnan Copper Mineral Resources Exploration Co.,Ltd.)

机构地区：[1]腾冲市恒益矿产品经贸有限责任公司 [2]云南铜业矿产资源勘查开发有限公司

出　　处：《现代矿业》2023年第12期40-44,共5页Modern Mining

摘　　要：通过对滇中“红层”地区以往地质资料的综合分析,结合六苴铜矿成矿地质条件、地球化学探测成果、矿化特征、控矿因素等的研究,在矿区有针对性地开展了广域电磁法地球物理探测。研究结果表明:矿床中铜矿化总体受地层岩性控制,马头山组长石石英砂岩是主要的赋矿岩性;矿区高峰寺组凹地苴段和马头山组六苴段地层中具有高Cu、Ag含量,地球化学异常总体呈NNE—NE向,与矿体走向一致;3条地质剖面的地球物理探测成果与宏观地质特征吻合度较高,高峰寺组凹地苴段中构造夹持部位是有利的成矿部位,深部找矿潜力优越,共在矿区内圈定2个成矿靶区。Based on the comprehensive analysis of the previous geological data in the′red bed′area of central Yunnan,combined with the research on the metallogenic geological conditions,geochemical exploration results,mineralization characteristics and ore-controlling factors of Liuju copper deposit,the geophysical exploration of wide-area electromagnetic method was carried out in the mining area.The results show that the copper mineralization in the deposit is generally controlled by stratigraphic lithology,and the feldspar quartz sandstone of Matoushan Formation is the main ore-bearing lithology.There are high Cu and Ag contents in the strata of the Aodiju section of the Gaofengsi Formation and the Liuju section of the Matoushan Formation in the mining area.The geochemical anomalies are generally NNE-NE,which is consistent with the trend of the ore body.The geophysical exploration results of the three geological sections are in good agreement with the macroscopic geological characteristics.The structural clamping site in the concave section of the Gaofengsi Formation is a favorable metallogenic site,and the deep prospecting potential is superior.Two metallogenic target areas are delineated in the mining area.

关 键 词：铜矿 矿化特征 广域电磁法 找矿潜力 

分 类 号：P618.41[天文地球—矿床学]