摘要
河南省铁山庙式铁矿床为沉积变质矿床,总储量达数亿t,矿石类型为磁铁矿、赤铁矿型。为了研究矿床氧化带的分布规律,指导采矿、选矿工作的顺利开展,对“二铁”矿床进行了现场踏勘、取样测试,结合有关资料比较系统地研究了河南省铁山庙式铁矿床氧化带的分布,以及对采选工作的影响,探讨了铁矿的形成过程和不同地质时期的氧化作用。结果表明,氧化矿硬度变低、密度变小、易于开采;氧化带东厚西薄、东深西浅;氧化矿与原生矿呈上下交叉、水平交叉出现;氧化带的分布与现代地形无关,仅与古地形有关。
The mechanism of formation of the Tieshanmiao-type iron deposits is studied, suggesting a sedimentarymetamorphic origin. The total reserves are 4.98 hundred miUion ton. The ore types are magnetite and hematite. In order to raise the production, we have explored the ore field and studied minerals and rocks. We have also done experiments. The paper analyzed the forming process of the Tieshanmiao-type iron deposits and dealt with the features and distribution of the oxidation belt. Oxided ore is lower in hardness and density. It is easy to explore. It is thicker and deeper in the East. Oxidized ore and primary ore occurred in level and vertical directions.
出处
《矿物学报》
CAS
CSCD
北大核心
2006年第4期431-434,共4页
Acta Mineralogica Sinica
