若羌塔什达坂稀有金属矿田地质特征与成矿规律浅析

Analysis of Geological Characteristics and Metallogenic Laws of the Tashidaban Rare Metal Mine in Ruoqiang

若羌县塔什达坂一带新发现稀长沟、塔木切、塔什达坂等伟晶岩型锂铍稀有金属矿(床)点,累计圈定伟晶岩型稀有金属矿体约60余条,长50~940 m,厚0.5~50 m,氧化锂品位0.11%~6.48%,是阿尔金地区重要的锂铍稀有金属矿田。初步认为阿中断裂及NE向次级断裂对稀有金属矿体的形成具有控制作用,矿床形成于中奥陶世,与区内中生代早期中酸性侵入岩关系密切。

A new discovery of pegmatite type lithium beryllium rare metal deposits(deposits)such as Xichanggou,Tamuche,and Tashidaban in the Tashidaban area of Ruoqiang County,Xinjiang.More than 60 pegmatite type rare metal ore bodies have been delineated in the Tashidaban area,with a length of about 50-940 meters,a width of 0.5-50 meters,and a lithium oxide grade of 0.11%to 6.48%.It is an important lithium beryllium rare metal ore field in the Altun region.It is preliminarily believed that the Azhong Fault and its northeast oriented secondary faults have a controlling effect on the formation of rare metal ore bodies.The deposit was formed in the Middle Ordovician and is closely related to the early Mesozoic acidic intrusive rocks in the area.