紫阳—岚皋地区碱中性岩地质特征及其含矿(铌钽)性研究  

THE GEOLOGICAL CHARACTERISTICS OF THE ALKALI-INTERMEDIATE ROCKS AND THEIR ORE-BEARING (COLUMBOTANTALITE) FEATURES IN THE ZIYANG-LANGAO AREAS

作　　者：邓盛波[1] 王炜红 汪显均 

机构地区：[1]中国地质大学(武汉),武汉430074 [2]陕西省地质调查院,西安710100

出　　处：《陕西地质》2003年第2期19-26,32,共9页Geology of Shaanxi

基　　金：地质大调查项目"紫阳地区铌钽矿资源评价" (项目编码 :2 0 0 110 2 0 0 0 30 )成果

摘　　要：陕西紫阳县至岚皋县一带 ,分布着东西长 1 6 0余千米、南北宽 2 0～ 4 0千米的古生代碱中性岩浆岩带。通过对碱中性岩浆岩的地质特征及其铌钽等稀有金属含矿性调查和研究 ,认为该岩浆岩带是本区重要的铌钽成矿区 ,碱中性岩浆岩是本区主要铌钽含矿岩体 ,碱中性岩具铌钽稀有金属矿化 ,伴镧铈稀土金属矿化。The Paleozoic alkali intermediate magmatic belt, with a width of 20 40km from south to north and a length of 160 km from the east to the west, occurs in the Ziyang county and Langao county, Shaanxi Province. Investigation and researches on the geological characteristics of the alkalic intermediate magmatic rocks and the ore bearing properties of columbium and tantalum indicated that the magmatite belt in this area is an important mineralized zone of columbium and tantalum and the alkalic intermediate magmatic rocks are the major columbium tantalum bearing rock masses. The alkalic intermediate rocks contain the mineralization of columbium and tantalum, associated with the mineralization of rare earth metals of lanthanum and cerium.

关 键 词：古生代 岩浆岩 地质特征 铌钽矿 陕西 碱中性岩 

分 类 号：P611[天文地球—矿床学] P588.1[天文地球—地质学]