西昆仑大红柳滩伟晶岩型锂铍矿产资源潜力评价

THE POTENTIAL EVALUATION OF PEGMATITE-TYPE LITHIUM-BERYLLIUM MINERAL RESOURCES IN DAHONGLIUTAN, WEST KUNLUN

西昆仑大红柳滩伟晶岩型锂铍等稀有金属矿带位于康西瓦断裂南侧、大柳滩—郭扎错断裂北侧,该区花岗伟晶岩脉十分发育,锂铍矿(化)体主要产于的花岗伟晶岩脉中。通过近3年的矿产地质调查工作,已发现了多处具有大型—超大型找矿前景的锂铍等稀有金属矿点。本次在系统的资料收集、野外调查的基础上,开展综合研究,利用最新矿产资源潜力评价方法,以阿克塔斯锂矿为典型矿床,对本区伟晶岩型锂铍矿产资源潜力进行了分析评价,初步圈出36个最小预测区,其中A类2个、B类2个、C类32个。预测200 m以浅Li2O资源总量375. 56万吨、 BeO资源总量10. 64万吨;显示大柳滩一带锂铍资源潜力巨大,有望成为我国一个新的锂铍等新兴战略矿产资源基地。

The Dahongliutan pegmatite lithium-beryllium and other rare metal ore belts are located in the south of Kangxiwa fault and the north of Daliutan -Guozhacuo fault, West Kunlun. The granite-pegmatite dike is very developed in this area, and the lithium-beryllide ore is mainly produced in granite-pegmatite dikes. Through nearly three years of mineral geological survey work, many rare metal mines of lithium-beryllium with large-scale and super -large prospecting prospects have been discovered. Based on the systematic data collection, field investigation and comprehensive research, this paper analyzes and evaluates the resource potential of pegmatitetype lithium- beryllium mineral in this region by using the latest mineral resources potential evaluation method and the Aketasi lithium and other rare metal deposit as a typical deposit, and circles 36 minimum prediction areas, including 2 class A, 2 class B and 32 class C. The resource reserves for Li2O and BeO are estimated to be 3. 75 million tons and 106 400 tons within the depth of 200 meters. It shows that the potential of lithiumberyllium is huge in the Dahongliutan area, and it is expected to become a new lithium -beryllium emerging strategic mineral resources base in China.