摘要
沉积作用不仅是稀土多金属矿富集的重要过程,且沉积作用发生的场所往往是稀土多金属矿赋存的重要场所,因此对本区稀土矿多金属矿沉积环境的研究具有理论和现实的双重意义.本次研究通过系统总结区域上典型稀土多金属矿点含矿岩系的沉积特征、结合具有环境指示意义的sr/ba值、δCe值、Th/U值等地化特征及区域沉积古地理背景,可将本区稀土多金属矿沉积环境划分为湖泊相、河流相、泥炭沼泽相、三角洲相沉积环境.
Abstract
Deposition is not only an important process of rare earth polymetallic ore enrichment,but also the place where deposition occurs is often an important place of rare earth polymetallic ore occurrence,so the study on the sedimentary environment of rare earth polymetallic ore in this area has both theoretical and practical significance.In this study,the sedimentary environment of rare earth polymetallic deposits in this area can be divided into lake facies,river facies,peat swamp facies and delta facies by systematically summarizing the sedimentary characteristics of typical rare earth polymetallic ore-bearing rock series in the area,combining with the geochemical characteristics of sr/ba,δCe and Th/U values,which have environmental indicative significance,and the regional sedimentary paleogeographic background.
基金项目
贵州省教育厅青年科技人才成长项目(黔教合KY字[2022]126号)
国家科技期刊平台
NSTL
万方数据