云南鹤庆锰矿高品位矿石成因的研究  

The Origin of High Grade Manganese Ore in Heqing Manganese Deposit,Yunnan

作　　者：常海亮[1,2] 温兴平[1,2] 王宏伟[1,2] 董莉莉[3] 刘灿[1,2] 

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]云南省矿产资源预测评价工程实验室,昆明650093 [3]胜利油田物探研究院,山东东营257000

出　　处：《河南科学》2013年第7期1061-1064,共4页Henan Science

基　　金：国家危机矿山专项(20089943);国家自然科学基金(41101343);昆明理工大学成矿动力学与隐伏矿预测创新团队(2008)资助

摘　　要：鹤庆锰矿矿石品位高达62.36%,该锰矿形成于浅海局限环境.Ce正或负的异常显示该矿床形成于海平面震荡的条件下.镜下可见早期矿物为菱锰矿,后被氧化为水锰矿或黑锰矿,品位升高.综合分析认为高品位矿石的形成经历了三个阶段:局限环境下锰质高度富集;因介质性质转变而成矿;表生作用阶段矿石品位升高.Heqing manganese deposit with ore grade arriving at 62.36% formed in a restricted shallow water environment. Positive or negative abnormality of Ce supports that this deposit formed under the condition that sea level shocked. The mineral formed in the first stage is rhodochrosite,which was oxidized into manganite or hausmannite later,with grade elevated. Comprehensive studies show that the formation of high grade manganese ore experienced three stages：manganese concentrated under restricted shallow water environment;mineral formed as media properties changed;the grade of manganese ore becoming higher during supergene stage.

关 键 词：锰矿 稀土元素 鹤庆 

分 类 号：P618.32[天文地球—矿床学]