藏南扎西康铅锌锑银多金属矿床地质特征及找矿方向

Geological Features and Range of Reconnaissance of the Zhaxikang Pb-Zn-Sb-Ag Polymetallic Deposit in South Tibet

扎西康铅锌锑银矿区主要出露下侏罗统地层。矿区内目前发现的4个铅锌锑银矿体,主要充填于近南北向张扭性断裂破碎带及次级羽状张节理中,矿化强度从构造带中心向两侧围岩呈渐变过渡关系。初步分析矿床与北部的穷多江变质核杂岩、广泛发育的南北向断裂及侏罗纪地层有着密切成因联系。F42、F46、F48所围限的倒三角形区域内的侏罗纪地层、南北向深大断裂和褶皱核部区域,应为今后矿区及外围进一步探矿的重点和主要研究对象。

The Lower Jurassic is exposed in the Zhaxikang Pb-Zn-Sb-Ag polymetallic deposit in south Tibet. 4 Pb-Zn-Sb-Ag orebodies have been found. The orebodies are confined to sublongitudinal tensional fracture zones and their secondary plumose fractures. A preliminary study indicates that genetically, the deposit is related to the Qungdo＇gyang metamorphic core complex, longitudinal faults and Jurassic stratum. A del area limited by faults F42, F46 and F48 should be perspective.