陕西大西沟金属矿矿石成分的初步研究  

Preliminary Study on the Composition of Ores from the Daxigou Metal Mine in Shaanxi Province

作　　者：王强 WANG Qiang(Shaanxi Daxigou Mining Co.,Ltd,Shangluo 711400,China)

机构地区：[1]陕西大西沟矿业有限公司,陕西商洛711400

出　　处：《世界有色金属》2023年第8期85-87,共3页World Nonferrous Metals

摘　　要：大西沟金属矿区内岩浆活动微弱,见煌斑岩脉,其成因可能为“富集型地幔熔融模式”。煌斑岩是一系列富含挥发成分的超基性-中性浅成脉岩。研究发现,煌斑岩和金、铁等矿产有一定伴生关系,但由于矿区内煌斑岩脉较小,因此对大西沟矿床后期的矿化富集影响较小。Magmatism in the Daxigou metal mining area is weak,and Lamprophyre veins can be seen.Its genesis may be"enriched mantle melting model".Lamprophyre is a series of ultrabasic neutral hypabyssal vein rocks rich in volatile components.It is found that Lamprophyre is associated with gold,iron and other minerals to some extent,but Lamprophyre vein in the mining area is small,so it has little impact on the later mineralization and enrichment of the Daxigou deposit.

关 键 词：大西沟 煌斑岩 地质特征 成因 矿化作用 

分 类 号：TD91[矿业工程—选矿]