摘要
四里沟铁矿位于沁阳市西北部太行山山脚下,是20世纪70年代发现的一个磁铁矿床.该矿床产于太古宇林山群变质岩系绿片岩中,矿体产状与围岩一致.矿体成群出现,呈似层状、透镜状,有用矿物主要为磁铁矿及少量赤铁矿.矿体的品位在走向和倾向上基本稳定,矿石化学成分和矿物组成简单,有害物质含量低.矿体群中夹层岩性与顶底板岩性基本一致.分析表明含矿绿片岩的原岩系基性-中基性火山岩系,而成矿物质来源为受变质的火山岩系.因此,认为该矿床成因属于海底火山喷发沉积-变质矿床.
Located in the north of Qinyang city and on the foot of Mt. Taihang, Siligou iron deposit is a magnetite deposit found in 1970s. The deposit occurs in the forest Group in Archean greenschist metamorphic rocks, and the ore occurrence is consistent with the surrounding rock. The ore bodies appear in groups in the form of stratification or lentoid. The useful minerals are mainly magnetite and hematite. The grade of ores is steady in strike and dip of ore bodies, and the chemical composition and mineral assemblage are simple with few of harmful constituents. Analysis shows that the original ore - bearing rocks of greensehist are basic - the middle basic volcanic rocks, which are formed the metamorphic minerals derived from volcanic rocks. Therefore, all these indicate that the ore deposit belongs to the submarine volcano eruption sedimentary -metamorphic deposits.
出处
《河南理工大学学报（自然科学版）》
CAS
2010年第5期612-616,共5页
Journal of Henan Polytechnic University（Natural Science）
关键词
四里沟铁矿
基性火山岩
沉积变质作用
Siligou iron deposit
basic volcanic rock
sedimentary metamorphism
