西藏拉屋铜锌矿床地质特征及找矿方向

摘要

拉屋铜锌矿床位于冈底斯铜铅锌多金属成矿带东段,成矿地质条件非常有利.矿体赋存于NW向同沉积断裂(F3)及附近的矽卡岩地层中,呈层状、似层状、透镜体状,主要受矽卡岩层与喷流机构构造控制,为典型的喷流沉积后期热液叠加改造矿床.经系统的地、物、化勘查,控制了铜、锌(333以上)资源量达13.56万吨.文章总结了该矿区地质特征、化探吸附烃异常特征,提出了勘查方向,对下一步找矿评价具有一定的指导意义.%Lawu copper-zinc deposit is located in the east section of Gangdise copper-lead-zinc polymetallic mineralization zone, and the metallogenic conditions thereof are very favorable.The ore bodies hosted in the contemporaneous sedimentary faulting (F3) of NW direction and the neighboring Skarn strata have the form of layer, layer-like or lens.The ore bodies are mainly controlled by Skarn strata and the construction of spouting mechanism.Lawu copper-zinc deposit is a typical later stage exhalation-sedimentary-superimposition deposit.According to the systematically physicochemical exploration, the resource extent of copper and zinc (more than 333) are 135,600 tons.This paper summarizes geological characteristics of this ore district and the abnormal characteristics of geochemical hydrocarbon adsorption, puts forward an exploration direction and provides a certain degree of directive significance to the further prospecting evaluation.