文献类型：期刊文献

中文题名：贵州晴隆沙子独立钪矿床形成条件分析及成因初探

英文题名：Analysis of Forming Conditions and Genesis of Sazi Independent Scandium Deposit in Qinglong,Guizhou Province

作者：聂爱国 孙军 张敏

第一作者：聂爱国

机构：[1]贵州理工学院资源与环境工程学院

第一机构：贵州理工学院资源与环境工程学院

年份：2018

卷号：35

期号：5

起止页码：31-36

中文期刊名：贵州大学学报：自然科学版

收录：CSTPCD

基金：国家自然科学基金项目资助(41262005);贵州理工学院高层次人才科研启动项目资助(XJGC20140702)

语种：中文

中文关键词：沙子钪矿床;形成条件;成因;特殊地球化学障;贵州晴隆

外文关键词：Sazi scandium deposit;forming conditions;genesis;special geochemical barrier;Qinglong;Guizhou Province

摘要：在茅口灰岩的喀斯特洼地中,富钪地质体(钪矿体)经第四纪红土化作用形成红色粘土及亚粘土矿体,即为沙子钪矿体。经研究得出:沙子钪矿床的成矿物质来源于矿区附近的晚二叠世峨眉山玄武岩;产于海陆交互的潮坪泻湖环境的喀斯特洼地中;洼地中海水积水几十至上百米深,形成特殊的低温低压弱碱性地球化学障。该矿床经历两个主要时期:晚二叠世龙潭早期喷流热水沉积期,钪以类质同象在锐钛矿中或被高岭石、绢云母吸附形成富钪地质体(钪矿体);第四纪表生风化—淋滤—成土成矿富化期,富钪地质体(钪矿体)在原地及附近遭受长期的风化—淋滤—成土作用,进一步红土富化形成残坡积型钪矿床。
In the karst depressions of Maokou limestone, the scandium -rich geological body （scandium orebody） was formed by Quaternary lateritization to form red clay and sub -clay orebody, that is, the Sazi scandium orebody. Studies show, the ore -forming materials of the Sazi scandium deposit come from the late Permian Emeishan basalt near the mining area; they occur in the karst depressions of the tidal flat lagoon environment, where the sea water is stored tens to hundreds of meters deep, forming special low temperature and low pressure weak alkaline geochemical barrier. The deposit experienced two main periods： during the early late Permian Longtan Sedimentation -exhalation period, scandium was adsorbed in form of isomorphism in anatase or by kaolinite as well as sericite to form a scandium -rich geological body （scandium ore body）; during the Quaternary epigenetic weathering, leaching and soil -forming mineralization, the scandium rich geological bodies （scandium orebodies） were subjected to long -term weathering, leaching and soil -forming processes in situ and nearby, and further laterite enrichment formed residual slope type scandium deposits.