摘要
五峰县龙角坝铁矿是鄂西四大宁乡式铁矿之一。据当时地质勘查确定,矿区主矿层属宁乡式铁矿第4矿层(Fe4),其中上矿层为褐铁矿鲕绿泥石矿层,下矿层为鲕状赤铁矿层。经最近调研,发现下矿层实际上为磁性铁矿层,矿石由大量磁铁矿和赤铁矿、菱铁矿、鲕绿泥石等组成,矿层具有很强的磁性。这一发现改变了对龙角坝铁矿的认识,也动摇了对鄂西宁乡式铁矿物质组成的理念;对今后的地质勘查和工业利用将产生重要影响。
Longjiaoba iron deposit is one of the four great iron deposits of Ningxiang type,western Hubei.According to geological prospecting result,the main ore bed of the deposit belongs to the fourth bed（Fe4） of Ningxiang type.It is divided in two beds： the upper one is limonite and chamosite ore,the lower one is oolitic hematite ore.Through recent survey,it discovers that the lower bed is magnetic iron ore bed,consisting of major magnetite,hematite,siderite and chamosite,having strong magnetic.This discovery changes the understanding on Longjiaoba deposit,and shakes the concept about components of Ningxiang type iron deposit at western Hubei.It has important influence on geological prospect and utilization from now on.
出处
《资源环境与工程》
2011年第4期299-303,317,共6页
Resources Environment & Engineering
关键词
龙角坝铁矿
磁性铁矿层
地质意义
Longjiaoba iron deposit
magnetic ore bed
geological implication
