吉林省临江市曲柳树南岗一带硅藻土矿成矿地质条件及找矿方向  

Ore-forming geological conditions and prospecting direction of diatomite mine in Quliushu Nangang area,Linjiang City,Jilin Province

作　　者：宋璞男 SONG Punan(Jilin Branch of China National Geological Exploration Center of Building Materials Industry,Changchun 130000,Jilin,China)

机构地区：[1]中国建筑材料工业地质勘查中心吉林总队,吉林长春130000

出　　处：《吉林地质》2024年第3期63-69,共7页Jilin Geology

摘　　要：对临江市曲柳树南岗一带硅藻土成矿地质条件进行总结以确定其找矿方向。硅藻土赋存于土门子组上段,埋藏深度65.9 m,单工程控制厚度17.35 m,其中Ⅰ级品3.1 m,Ⅱ级品6 m,Ⅲ级品8.25 m,形成于气候相对温暖湿润,以生物沉积为主、淡水湖泊相沉积环境中。土门子组、以玄武岩为基底的新生代凹陷盆地是硅藻土主要找矿方向。In this paper,the geological conditions of diatomaceous earth mineralization,in the Nangang area of Quliushu in Linjiang City are summarized to determine its prospecting direction.Diatomaceous earth is found in the upper section of the Tumenzi Formation,with a burial depth of 65.9 m and a single engineering control thickness of 17.35 m,including Grade I is 3.1 m,Grade II is 6m,and Grade III is 8.25 m.It formed in a relatively warm and humid climate,dominated by biological sedimentation and freshwater lake sedimentary environment.The Tumenzi Formation and the Cenozoic depression basin based on basalt are the main prospecting directions for diatomaceous earth.

关 键 词：硅藻土 土门子组 凹陷盆地 临江市 

分 类 号：P619.265[天文地球—矿床学]