青海祁漫塔格那西郭勒矿床矿地质特征及控矿因素分析

Geological Characteristics and Ore-controlling Factors of Xiguole Deposit,Qiman Tagna,Qinghai Province

那西郭勒矿床位于东昆仑祁漫塔格成矿带上,矿床类型为沉积变质型铁——石墨矿,目前矿床规模达到中型。综述了那西郭勒矿床地质特征,分析该矿床控矿因素及矿床成因,认为该矿床铁矿体主要产于金水口岩群斜长角闪片岩岩组,石墨矿产于斜长角闪片岩岩组和大理岩岩组中,矿体产出受地层、岩性和构造变质变形作用的控制,后期断裂及岩浆作用对矿体具有破坏作用。

Naxiguole deposit is located in Qimantage metallogenic belt of East Kunlun Mountains.The deposit type is sedimentary metamorphic iron-graphite ore,and the scale of the deposit is medium at present.In this paper,the geological characteristics of the Naxiguole deposit are summarized,and the ore-controlling factors and the genesis of the deposit are analyzed.It is considered that the iron ore body of the deposit mainly occurs in the amphiolite schist formation of the Jinshuikou rock group,including the graphite ore deposit in the plagioclase amphibole schist formation and the marble formation.Ore bodies are controlled by strata,lithology and tectonic metamorphism.Later,faults and magmatism have destructive effects on orebodies.genesis