宜州—忻城一带碳酸锰矿成矿地质条件与找矿探讨  

Discussion on metallogenic geological conditions and prospecting of manganese carbonate ore in Yizhou Xincheng area

作　　者：覃少耀 陆春凯 QIN Shao-yao;LU Chun-kai(Geology Team No.4 of Guangxi Zhuang Autonomic Region,Nanning 530031,China)

机构地区：[1]广西壮族自治区第四地质队,广西南宁530031

出　　处：《世界有色金属》2020年第3期180-181,共2页World Nonferrous Metals

摘　　要：研究区是广西早石炭世锰矿最主要的成矿带,锰矿床皆分布于龙头~北牙~塘窝~理苗台沟内,受成矿地质体、成矿构造、沉积相所控制,具有“构造控盆,盆控岩相,岩相控矿”的特点。成矿盆地分深水相和浅水相,锰矿床集中分布于深水海盆内。深水海盆的岩相具有明显的分带性,中心相锰品位较高,矿层较厚;边缘相锰品位较低,矿层较薄。The study area is the main metallogenic belt of Early Carboniferous manganese deposits in Guangxi.The manganese deposits are all distributed in Longtou Beiya tangwo limaotai ditch,controlled by metallogenic terrane,metallogenic structure and sedimentary facies,and have the characteristics of"structure controlling basin,basin controlling lithofacies and lithofacies controlling ore".The ore-forming basins are divided into deep-water and shallow water facies,and manganese deposits are concentrated in deep-water basins.The lithofacies of the deep-water basin has obvious zonation,the manganese grade of the central phase is higher,and the ore bed is thicker;the manganese grade of the marginal phase is lower,and the ore bed is thinner.

关 键 词：碳酸锰矿 同沉积断裂 深水台盆 中心相 宜州~忻城 

分 类 号：P618.32[天文地球—矿床学]