若羌库木萨依伟晶岩特征对锂矿形成的指示意义

Indicative Significance of the Characteristics of Kumusayi Pegmatite in Ruoqiang County for the formation of Lithium Deposits

研究区位于青藏高原北缘阿尔金铜金成矿带,处于祁连-昆仑构造带、柴达木陆块和塔里木陆块之间。若羌县库木萨依花岗伟晶岩型锂矿具较高的分异程度,轻重稀土分量不明显,可能来源于地壳物质的部分熔融,构造环境为北阿尔金洋回转引起的俯冲环境。通过对库木萨依花岗伟晶岩型锂矿地质特征、矿床成因及资源潜力的研究,为阿尔金地区寻找类似锂矿资源提出方向。

The research area is located in the Altun Copper Gold Metallogenic Belt on the northern edge of the Qinghai Tibet Plateau,situated between the Qaidam block,the Qilian-Kunlun orogenic belt,and the Tarim block.The Kumusayi granite pegmatite type lithium deposit in Ruoqiang County has a high degree of differentiation,and the light and heavy rare earth components are not obvious.It may be derived from partial melting of crustal materials,and the tectonic environment is a subduction environment caused by the rotation of the North Altun Ocean.By studying the geological characteristics,genesis,and resource potential of the Kumusayi granite pegmatite type lithium deposit,this study provides guidance for searching for similar lithium resources in the Altun region.