陕西省汉阴县汉阳—紫阳县东木地区铌钽矿带地质特征及控矿因素分析  

GEOLOGY AND ORE-CONTROLLING FACTORS OF Nb-Ta ORE ZONE IN DONGMU DISTRICT,ZIYANG COUNTY AND HANYANG DISTRICT,HANYIN COUNTY,SHAANXI PROVINCE

作　　者：全少龙 陈星辉 杨超 曹志伟 Quan Shong-long;Chen Xing-hui;Yang Chao;Cao Zhi-wei(Xi′an Institue of Geological and Mineral Exploration,ltd.Xi′an 710100)

机构地区：[1]西安地质矿产勘查开发院有限公司,西安710100

出　　处：《陕西地质》2021年第2期42-49,共8页Geology of Shaanxi

基　　金：陕西省地质勘查基金项目“陕西省汉阴县汉阳—紫阳县东木地区铌钽矿预查”(61201304208)。

摘　　要：近年来,湖北省竹山地区在紫阳—平利—竹山碱中性岩浆带不断发现有新的铌钽矿床,陕西省汉阴县汉阳—紫阳县东木地区正好处于该岩浆带中,通过勘查工作,在该区的碱中性岩浆带中共圈定了9条铌矿体、6条铌钽矿化体、19条铌矿化体。铌钽矿(化)体均产于碱性正长斑岩体中,部分含矿岩体表现为全岩矿化特征,矿体走向与岩体(主构造带)方向近一致,形态规则,在走向和倾向延伸方向较为稳定,有望形成新的矿产地,对于紫阳—平利—竹山碱中性岩浆带铌钽、稀土找矿突破工作意义重大。In recent years,new Nb-Ta deposits have been found in the alkali neutral magmatic belt in Zhushan area,Hubei Province.The Nb-Ta deposit is just located in the Ziyang-Pingli-Zhushan alkali neutral magmatic belt in Dongmu District,Ziyang County and Hanyang District,Hanyin County,Shaanxi Province.Through exploration,9 niobium ore bodies,6 niobium tantalum mineralized bodies and 19 niobium mineralized bodies have been delineated in the alkali neutral magmatic belt in Dongmu District,Ziyang County and Hanyang District,Hanyin County.All ore bodies occur in alkaline syenite porphyry,and some ore-bearing rocks are characterized by whole rock mineralization.The strike of the ore body is nearly consistent with the direction of the rock mass(main structural belt),and the shapes of the ore bodies are regular and relatively stable in strike and dip extension direction.This area is expected to be a new prospecting area,which would be great significant for the breakthrough of Nb,Ta and rare earth prospecting in Ziyang-Pingli-Zhushan alkali neutral magmatic belt.

关 键 词：铌钽矿床 碱中性岩浆带 陕西省 

分 类 号：P618.702[天文地球—矿床学]