湖南魏家隐伏型钨-萤石矿床控矿因素及成矿规律分析

Ore controlling factors and metallogenic regularity of concealed tungsten-fluorite deposits in Weijia of Hunan

魏家钨矿区位于南岭成矿带中段,为2010年国土资源大调查中新发现的矿产地。通过近年的工程控制,在钨矿体内新发现了萤石矿。本文在对矿床地质特征进行了进一步研究基础上,对矿床的控矿因素及成矿规律进行了总结分析,认为本矿区矿床类型为矽卡岩型钨、萤石矿床,矿体的空间展布主要受矿区内隐伏型层间破碎带和层间破碎带内充填的花岗斑岩脉共同控制。

Weijia tungsten mining area, a newly discovered mineral site in ＂The Grand Survey of Land and Re- sources of 2010＂, is located in the middle part of Nanling metallogenic belt. In recent years, fluorite ores were discovered in tungsten orebodies by ore-controlling projects. Based on further study on geological char- acteristics of the deposits, this paper summarizes and analyzes the ore-controlling factors and the metallogen- ic regularity of the deposits, and it shows that the deposits in this area are skarn-type tungsten-fluorite de- posits and the spatial distribution of the orebodies are primarily controlled by concealed interlayer fracture zone and granite porphyry veins filled with in the interlayer fracture zone.