希勒库都克钼铜矿区地球物理、地球化学异常特征与找矿模式

Characterastics of Geophysical and Geochemical Anomalies and Prospecting Model of Xilekuduke Mo-Cu Ore Deposit,Altai,Xinjiang

希勒库都克钼铜矿是近年来找矿突破的一个斑岩型钼铜矿床,在研究总结矿区地质、地球物理、地球化学异常特征基础上,查明矿床控矿地质因素,认为下石炭统南明水组上亚组是有利赋矿层位,海西晚期花岗闪长岩、斑岩脉为主要含矿岩石,区域上及矿区NW向、近EW向构造为有利控矿构造.明确找矿信息标志及准则,认为环状高磁异常间低磁异常特征及低阻高激化激电特征,Cu,Mo,Au,Sn,Sb,Pb,Zn等元素岩石地球化学综合异常及由内向外Cu,Mo,Au,Sn→Sb,As→Pb,Zn异常分带特征,可作为有效找矿信息标志.在此基础上,提出基于矿床地质、地球物理、地球化学综合信息找矿模型.

Xilekuduke belongs to porphyry Mo-Cu deposit which has advanced in prospecting in recent years. Based on research of characteristics of geology, geophysical and geochemical anomalies, the ore-controlling geological factors of this ore district has been found out, it＇s considered that upper subunit of lower Carbonic Nanmingshui group is the advantaged ore-bearing layer, later Hercynian granodiorite and porphyry veins are primary ore-bearing rocks, structures in the direction of northwest and similarly east-west of both regional and ore district is the most important ore-controlling structures. The indicators and information for prospecting of this ore district has been confirmed, it＇s considered that characteristics of low magnetic anomalies among ring high magnetic anomalies, low resistivity and high polarizability, combined geochemical anomalies of Cu, Mo, Au, Sn, As, Sb, Pb, Zn, and zonation of Cu, Mo, Au, Sn→As, Sb→Pb, Zn from the center to outside, can be used as effective prospecting indicators. On this basis, the integrated information prospecting model of this deposit has been put forward, which may be helpful for prospecting in deeper sections and periphery of this ore district.