桂西南优质锰矿成矿机理分析  

Analysis of Metallogenic Mechanism of High-grade Manganese Ore in Southwest Guangxi

作　　者：李升福[1] 王泽华[1] 李朗田 夏柳静 简耀光[1] 侯建生[1] 陈石羡[1] 

机构地区：[1]中国冶金地质总局中南地质勘查院,湖北武汉430081

出　　处：《资源环境与工程》2009年第4期363-370,共8页Resources Environment & Engineering

基　　金：本研究项目得到地质调查项目(项目编号:199710200107);科技部"十一五"国家科技支撑计划项目(2006BAB01A12-2)资助

摘　　要：在系统阐述桂西南地区成锰盆地、含锰沉积建造、含锰岩系时空分布特点的基础上,探讨了该区锰矿的形成环境,提出"宁干式"正常沉积—次生氧化矿床、"东平式"淋积型锰矿床、"下雷式"热水沉积—次生氧化矿床是本区三种典型的锰矿成因类型,并详细论述该区优质锰矿的形成条件、富集机理及控制因素,提出本区优质锰矿是原生沉积—叠加改造—表生风化多种成矿方式叠加作用的结果。Based on systematically elaborating the characteristics of spatial and temporal distribution of manganese deposit basin and manganiferous sedimentary formation and manganese deposit stratigraphic systems, the authors discuss the manganese ore-forming environment in the area, elaborate on the high-grade manganese ore-forming condition and enrichment mechanism and controlling factors in the area, put forward that the high-grade manganese ore is result of superposition of multiple ore-forming models which are protosomatic sediment-superimposed reformation-hypergene weathering in this area. ＂Ninggan＂ model natural sediment-secondary oxidized deposit,＂ Dongping＂ model eluvial manganese deposit and ＂Xialei＂ model hot-water deposit- secondary oxidized deposit which are three genetic types of typical manganese are presented.

关 键 词：桂西南 优质锰矿 成锰盆地 含锰沉积建造 含锰岩系 成因类型 富集机理 

分 类 号：P618.32[天文地球—矿床学]