松桃大塘坡组地质特征揭示锰矿成矿因素研究  

Study on the Ore-Forming Factors of Manganese Ore Revealed by the Geological Characteristics of Datang Slope Formation in Songtao County

作　　者：杨云杰 YANG Yunjie(First Brigade of Nonferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang 551400,China)

机构地区：[1]贵州省有色金属和核工业地质勘查局一总队,贵阳551400

出　　处：《黑龙江国土资源》2024年第11期61-67,共7页Heilongjiang land and Resources

摘　　要：为揭示特殊地质条件下的锰矿矿床成因和控矿因素,本文对贵州省松桃县大塘坡组地层特征与锰矿成矿关系展开研究分析,总结出大塘坡组地层厚度、岩相标志、古断裂(方向性与等距性)以及Mn/Cr比值规律,与锰矿品位及矿体厚度呈正相关性。根据大塘坡组及锰矿体的厚度变化规律分析,通过沉积环境、沉积相和沉积物源等分析研究,发现松桃道坨—冷水成锰沉积盆地和杨立掌—李家湾成锰沉积盆地为同一个成锰沉积盆地,进一步说明了该区锰矿资源潜力较大。To reveal the reasons and formation factors of manganese ore under special geological conditions,this article analyzes the relationship between the geological characteristics of the Datang Slope Formation in Songtao County,Guizhou Province and the mineralization of manganese ore.This research summarizes the thickness,lithofacies markers,ancient faults(direction and equidistance),and Mn/Cr ratio rules of the Datang Slope Formation,all of which are positively correlated with the grade of manganese ore and the thickness of the ore body.Based on the thickness variation law of Datang Slope Formation and manganese ore body,and through the research of sedimentary environment,sedimentary facies,and sedimentary sources,it’s found that Daotuo-Lengshui manganese sedimentary basin in Songtao County and Yanglizhang-Lijiawan manganese sedimentary basin are the same manganese sedimentary basin,indicating the great potential of manganese resources in this area.

关 键 词：大塘坡组 地层特征 锰矿 矿床成因 贵州 松桃县 

分 类 号：TD801[矿业工程—矿山开采]