甘肃省永昌县东大山磁铁矿床地质特征及找矿前景分析  

Geological characteristics and prospecting potential analysis of Dongdashan magnetite ore deposit in Yongchang county,Gansu province

作　　者：陈江源[1,2] 江民忠 段晨宇[1,2] 牛家骥 黄亮[1,2] 孙栋华 CHEN Jiangyuan;JIANG Minzhong;DUAN Chenyu;NIU Jiaji;HUANG Liang;SUN Donghua(Aribore Survey and Remote Sensing Center of Nuclear Industry, Shijiazhuang 050002, China;CNNC Key Laboratory for Geophysical Exploration Technology Center of Urannium Resource,Shijiazhuang 050002, China)

机构地区：[1]核工业航测遥感中心,石家庄050002 [2]中核集团铀资源地球物理勘查技术中心重点实验室,石家庄050002

出　　处：《地质找矿论丛》2019年第2期171-178,共8页Contributions to Geology and Mineral Resources Research

基　　金：中国地质调查局项目“甘肃省北祁连山—龙首山地区1∶5万航空物探调查”(编号:12120114090501);中国核工业地质局项目(编号:201215A)联合资助

摘　　要：东大山磁铁矿地处阿拉善隆起Cu-Ni-Pt-Fe-REE-P-石墨-芒硝-盐类成矿带西缘,属于产在前长城系龙首山群一套变质岩中的沉积变质型磁铁矿床,分析其航磁异常特征及找矿标志对同类型矿床勘查具有借鉴意义。通过收集矿区地质资料,基于在矿区及周边开展的1∶5万航磁测量及异常查证情况,分析了矿区地质、地球物理和遥感影像特征,提出了沉积变质型铁矿的找矿标志,并圈定了找矿远景区1处。The Dongdashan magnetite ore deposit in Yongchang County is located in the western margin of Cu-Fe-Ni-Pt-REE-P-graphite,glauber’s salt ore belt in the Alashan uplift.It is a sedimentary-metamorphic magnetite ore deposit occurring in a set of metamorphic rocks of the pre-Changcheng System Longshoushan Group.Geological,geophysical and remote ensing characteristics and prospecting marks of the deposit are analyzed.The analysis can be referred to prospecting of the similar deposits in the area.And 1 target has been located according to the analysis.

关 键 词：东大山 磁铁矿 矿床特征 找矿前景 甘肃省 

分 类 号：P618.31[天文地球—矿床学]