东昆仑马尔争铜(金)矿床地质特征及成因  

Geological Features and Genesis of the Maerzheng Copper( gold) Deposit in the Eastern Part of Kunlun Area

作　　者：常鑫 王权锋 童海奎 张孝攀 彭涛 

机构地区：[1]数学地质四川省重点实验室,四川成都610059 [2]青海省地质调查局,青海西宁810012

出　　处：《金属矿山》2014年第6期105-108,共4页Metal Mine

基　　金：中国地质调查局区域地质调查项目(编号:1212011120212);数学地质四川省重点实验室开放基金项目(编号:SCSXDZ2011015)

摘　　要：通过马尔争矿区的地质构造特征的分析,认为矿床的铜矿化体明显受中变基性火山岩控制,矿体与围岩产状基本一致,金矿化明显受控于NW向大型剪切带,属于与印支期造山活动有关的破碎带蚀变岩型金矿。因此,马尔争铜(金)矿床以火山块状硫化物型铜矿化为主,次为破碎带蚀变岩型金矿化的矿床。利用分形含量面积法对1∶1万化探土壤测量数据进行分析,圈定出的化探异常总面积大,各元素特征形态基本一致,高度叠加、分带性好,并结合矿区地质背景和地质概况分析,认为其找铜(金)前景良好,并提出了找矿标志。该矿床具有中大型远景规模。According to the analysis of geological structure characteristics of Maerzheng mining area, it is considered that the copper mineralized bodies in the mining area are significantly controlled by the mid-metamorphic basic volcano rocks, and orebodies＇ occurrence are consistent with the surrounding rocks. The gold mineralized bodies are significantly controlled by a large NW trending shear zone and it belongs to the fracture belt altered rock type gold deposit related with Indosinian orogenic events. Therefore, Maerzheng copper（gold） deposit is the one that is mainly constituted by volcanogenic massive sulphide copper mineralization copper deposit,followed by fracture zone of altered rock type gold deposit. The analysis on 1/10 000 geochemical soil survey data by adopting the fractal content-area method indicated that the area of geochemical anomalies is large, and the elements are basically in the same shape with highly overlapped and good zonation. According to the analysis of geological background and geological situation, it is indicated that, the ore prospecting of copper（gold） should be good. The indicators of ore prospecting are given. The Maerzheng copper（gold） deposit has middle or large prospective scale.

关 键 词：马尔争铜(金)矿 地质特征 成因探讨 找矿标志 

分 类 号：P632[天文地球—地质矿产勘探]