帕米尔构造结锂矿资源潜力评价——基于1∶100万地球化学调查

An Assessment of Lithium Resource Potentiality in Pamir Syntax——Based on 1∶1 million Scale of Geochemical Survey

帕米尔构造结夹持于塔吉克盆地与塔里木盆地之间,是印度板块与欧亚板块碰撞形成的巨大山结,由西侧的兴都库什山、中部的帕米尔高原、东侧的昆仑山3部分组成,它们经历了相同的地质演化历史。近年来,在西部的兴都库什地区发现了帕斯古斯塔、贾马纳克等大型、超大型伟晶岩型锂矿,在东侧的西昆仑地区发现了大红柳滩、俘虏沟等具大型、超大型远景的伟晶岩型锂矿,而在中部的帕米尔地区由于前期工作程度较低,目前还没有成型的锂矿床,但在该地区发育大量的伟晶岩脉。笔者在成矿规律认识的基础上,基于1∶100万地球化学调查数据,利用地球化学块体理论对帕米尔构造结进行了锂资源潜力评价,认为中部的帕米尔高原同样具有发育大型、超大型伟晶岩型锂矿的潜力,东部的西昆仑大红柳滩一带也具有巨大的找矿潜力,帕米尔构造结有望构成世界级“锂矿带”。

The Pamir syntax,located between the Tajik Basin and the Tarim Basin,is a huge mountain knot formed by the collision of the Indian and Eurasian plate.It is composed of the Hindu Kush Mountain in the west,the Pamir Plateau in the middle,and the Kunlun Mountain in the east,which have experienced the same geological evolution history.In recent years,large and super-large pegmatite-type lithium deposits in Hindu Kush(e.g.Pasgusta and Jiamanak)and West Kunlun(e.g.Dahongliutan and Hulugou)have been discovered.A large number of pegmatite veins have also been found in the middle of Pamir,though there has no lithium deposits yet.On the basis of metallogenic regularity,this paper,based on 1∶1 million geochemical survey,assesses the lithium resource potentiality in Pamir syntax using the geochemical block theory.The authors believe that the middle of Pamir has much potential for large and super-large pegmatite-type lithium deposits,while the Dahongliutan area in West Kunlun has huge prospecting potential.