西昆仑昆盖山萨洛依西铜矿地质、地球物理特征及找矿方向

摘要

萨洛依西铜矿是昆盖山北坡下石炭统乌鲁阿特组细碧角斑岩建造中产出的火山岩型块状硫化物矿床.赋矿围岩为黄铁矿化、绿泥石化的细碧岩,矿体呈似层状与热水沉积岩共生,沿同一层位产出,形成于火山活动的间歇期.铁帽、黄钾铁矾带、孔雀石化、蓝铜矿化、黄铁矿化是直接有效的找矿标志.低阻高极化的激电异常是寻找含铜黄铁矿体的有利部位,呈囊状、半月状的近地表、中浅部及近直立且向深部延伸较大的低阻带也显示了较好的找矿前景.对比阿舍勒铜矿的地球物理勘查成果,可依据矿体具有的低阻、高极化、高重力组合异常特征,开展高精度重力勘查工作,为后续找矿勘查工作提供方向.%The copper mine in the west of Saluoyi is volcanic rock type massive sulfide deposit produced in spilitic keratophyre formation of the lower carboniferous Uruart group in the north slope of kungai mountains.The ore rock is pyritization and chloritization spilite,the ore bodies appear to coexist with hot water sedimentary rocks,and they are in the same position,formed during the intermittent period of volcanic activity.The iron hat,yellow potassium ferrite belt,peacock petrified,blue copper,pyritization are the obvious,direct and effective prospecting criteria.Low resistance and high polarization excited electrical anomaly is the favorable position to find the copper pyrite,the low resistivity anomalies in the near surface,middle and shallow part,which Shaped like a cyst and half-moon,and with those extends to the deep also have good ore-probing future.Compared wirh the geophysical exploration results of Ashele copper deposit,we can do some high-precision gravity exploration workaccording to the ore bodies with low resistance,high polarization and high gravity characteristics,to provide a favorable prospecting direction for future prospecting works.