贵州松桃地区杨里长锰矿床地质特征及勘探前景分析  

An Analysis of Manganese Deposit Geological Characteristics and Exploration Prospects of Yanglichang Mine in Songtao,Guizhou

作　　者：刘任重[1] 何香群 LIU Renzhong;HE Xiangqun(No.142 Geological Team of Coal Mine Exploration of GuiZhou Provice,GuiYang,Guizhou 550000,China)

机构地区：[1]贵州省煤田地质局一四二队,贵州贵阳550000

出　　处：《中国锰业》2018年第3期24-27,共4页China Manganese Industry

摘　　要：研究区内锰矿赋存在南华系地层中,为三阳断裂带;多源性是该地区锰矿成矿物质来源的特点,且热水活动影响了锰矿成矿,陆缘水力较小的浅海使矿物质沉积富集,为形成锰质还原盆地提供有利环境。矿床成因为天然气渗漏;含锰岩系(大塘坡一段)厚度自南向北逐渐变薄,直至尖灭;区域上位于成矿带东南部区域锰矿成矿过渡区域,其含锰层段的厚度较薄,含矿性较差,岩性由含锰白云岩、炭质页岩、含锰炭质页岩组成;区内东南角存在小型矿体分布的可能,后期勘探找矿应向该方向进行。Manganese ore in the study area is located in Nanhua series,which is San Yang fault zone.The multi source is the characteristic of the mineral source of the manganese ore in this area,and the hot water activity affects the manganese ore mineralization.The shallow sea with small continental margin will make the mineral deposits rich.It provides the favorable environment for the formation of the manganese and the original basin.The deposit is caused by natural gas leakage in the thickness of the manganese bearing rock series（the section of the Datang slope） with gradually-thinned shapes from south to north,until the cusp is destroyed.The region is located in the southeast region of the metallogenic belt.The manganese bearing layer is thinner and less ore bearing.The lithology is composed of manganese dolomite,including carbonaceous shale and manganese carbonaceous shale.The distribution of small ore bodies is possible in the southeast corner of the area.Later exploration and prospecting should be carried out in this direction.

关 键 词：矿床地质 锰矿 地质特征 杨里长矿区 

分 类 号：P618.32[天文地球—矿床学]