新疆阿克陶县玛尔坎苏一带锰矿石矿物特征及矿床成因浅析  

Characteristics and Genesis of Manganese Ore Mineral in Maerkansu,Akto County,Xinjiang

作　　者：谷骏 刘燕群[1] 曹景良[1] 陈贺起 张建新 GU Jun;LIU Yan-qun;CAO Jing-liang;CHEN He-qi;ZHANG Jian-xin(Hunan Geological Exploration Institute of China Metallurgical Geology Bureau,Changsha,Hunan 410016;Northwest Geological Exploration Institute of China Metallurgical Geology Bureau,Xi'an,Shaanxi 710016)

机构地区：[1]中国冶金地质总局湖南地质勘查院,湖南长沙410016 [2]中国冶金地质总局西北地质勘查院,陕西西安710016

出　　处：《地质与勘探》2018年第S01期1307-1317,共11页Geology and Exploration

基　　金：中国地质调查局塔里木盆地西南缘锰多金属矿产地质调查(编号:DD20160003);全国矿产资源潜力动态评价(编号:121201103000160910)联合资助。

摘　　要：新疆玛尔坎苏一带锰矿赋存于上石炭统喀拉阿特河组地层中,锰矿层呈层状、似层状产出,顶底板均为泥灰岩、泥晶灰岩。矿层产状与地层产状一致,明显受层位控制,延伸较为稳定。锰矿品位比较高,局部富集品位高达50%以上,通过X衍射、电子探针等实验方法对锰矿石矿物成分分析,推测矿床为海相沉积成因,且经后期热液多次改造用作影响。The manganese deposits in the Maerkansu region,Akto county,Xinjiang are hosted in the Upper Carboniferous Galaatehe Formation.Their occurrence is featured by layered and quasi-stratified forms with top and bottom layers all of marls and mudstones.The occurrence of seams is consistent with the strata,obviously controlled by horizons with relatively stable extension.The manganese ore grade is relatively high,locally the enrichment grade is as high as more than 50%.Through the analysis of the mineral composition of manganese ore by X-ray diffraction,electron probe and other experimental methods,it is inferred that the ore deposit formed in marine sediments,and has experienced many times of reformation by the later hydrothermal fluids.

关 键 词：锰矿矿物 沉积成因 玛尔坎苏 阿克陶县 新疆 

分 类 号：P595[天文地球—地球化学]