摘要
会理绿湾低品位磁铁矿床赋存于前震旦系河口组第二段(Pt1h2)及第一段(Pt1h1)变钠质火山岩中,变钠质熔岩普遍含尘点状磁铁矿,有时富集成密集的条带,局部构成低品位磁铁矿体。于古断裂及其傍侧次级褶皱部位,有晚期基性岩体(株)侵入,并对老地层中的低品位磁铁矿体进行热液叠加富集改造。该区磁铁矿石贫铁、低硫、低磷,易采,易选,矿区近临攀技花钢铁厂,具有良好的开发利用前景。
The L＆#252;wan low-grade magnetite deposit in Huili, Sichuan is confined to the meta sodic volcanic rock of 2nd and 1st of the Presinian Hekou Formation. Magnetite occurs as dissemination or band in sodic lava, locally forms low-grade ore with low sulfur and phosphorous. Some low-grade magnetite orebodies were reformed and enriched by baisc stock.
出处
《四川地质学报》
2015年第2期209-211,共3页
Acta Geologica Sichuan
关键词
磁铁矿
地质特征
开发利用
会理绿湾
magnetite
geological feature
exploitation
L＆#252
wan,Huili
