东昆仑益克郭勒铜钼多金属矿地质特征及找矿标志

通过系统的野外地质调查,在详细研究分析矿床地质、地球物理、地球化学、矿石矿物及围岩蚀变等特征的基础上,结合区域成矿地质背景,表明益克郭勒铜钼多金属矿属于斑岩型矿床,矿体受岩体及断裂构造控制明显,产于岩体中、岩体外接触带及构造破碎带中,主要由黄铜矿、黄铁矿及辉钼矿组成,伴生有Ag、W等矿种,矿石类型以浸染状及细脉浸染状为主。围岩蚀变有硅化、钾化、褐铁矿化、黄铁绢云岩化及孔雀石化。研究区岩株状产出的岩体、北东向构造、围岩蚀变、地球物理及地球化学异常是最有利的找矿标志。

Geological characteristic and prospecting indicator in Yikeguole of East Kunlun

In combination with the regional metallogenetic and geological background,Yikeguole molybdenum polymetallic deposit is defined to be porphyry type according to the detailed research results in terms of the geological,geophysical and geochemical characteristics,as well as the ore minerals and wall rock alternation obtained from systematical field geological survey.The orebodies are obviously controlled by rock masses and faults,and are mainly occurred in the rock masses and their outer contact zones,as well as in tectonic fracture zones.The dominant mineralization includes chalcopyritization, pyritization and molybdenite mineralization,associated with Ag and W mineralization.The ores are mainly characterized by disseminated and fine-vein disseminated structure,and the wall rock alterations are mainly featured with silicification,potassization,ferritization,beresitization and malachitization.Generally,it can be inferred that stocks,NE-trending tectonics,wall rock alteration,as well as geophysical and geochemical anomalies are the most favorable prospecting criteria.