东昆仑迪木那里克铁矿地质特征与找矿标志  

Geological Characteristics and Prospecting of Dimunalike Iron Ore in East Kunlun

作　　者：胡秀军[1] 夏昭德[2] 丁海波[1] 张朋[1] 

机构地区：[1]新疆地质矿产勘查开发局第三地质大队,新疆库尔勒841000 [2]长安大学地球科学与资源学院,西安710054

出　　处：《亚热带资源与环境学报》2011年第2期49-53,共5页Journal of Subtropical Resources and Environment

基　　金：中央高校基本科研业务费专项资金项目(CHD2010ZY008);新疆维吾尔自治区地质勘查中央专项资金项目(ZYZXKC2006-2)

摘　　要：迪木那里克铁矿位于阿尔金大断裂南侧,矿体主要赋存于中-上奥陶统祁曼塔格群浅变质的碎屑岩-火山碎屑岩中.矿体多呈似层状、条带状产出,部分矿体塑性变形较强,矿体与地层产状基本一致,层控作用比较明显;矿石主要为条带状石英-磁铁矿和块状磁铁矿矿石;矿石品位较低(TFe=20%～40%);围岩蚀变特征明显.该铁矿属沉积变质型铁矿.综合研究发现,可利用矿区地层、构造、岩石蚀变情况、航磁异常等作为矿区和区域找矿标志.Dimunalike iron ore lies in the south of Altun large faults,occurring mainly in metamorphosed clastic rocks-pyroclastic rock of the Middle-Upper Ordovician Qimantage group.Most ore bodies are nearly layered or banded,some have undergone strong plastic deformation,and as a whole the ore is consistent with obvious stratum controlling function.The ores are mainly banded quartz-magnetite and bulk magnetite,with a relatively low grade（TFe=20%～40%）.Therefore,the iron ore is a sedimentary-metamorphic type.Through comprehensive study,it has been found that mine stratigraphy,tectonics,rock alteration situation and aeromagnetic anomaly can be used together for mining and regional prospecting.

关 键 词：磁铁矿 沉积变质型 东昆仑 迪木那里克 

分 类 号：P618[天文地球—矿床学]