东秦岭稀有金属矿床成矿与分布特征——以河南省卢氏、南召两地区几个矿床为例  

THE EAST QINLING RARE METAL DEPOSIT ORE-FORM AND DISTRIBUTION CHARACTERISTICS——Taking several deposits in Henan LuShi and NanZhao areas as example

作　　者：王令全[1] 郭锐[1] 王军强[1] 付阳[2] 付治国[1] 

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南许昌461000 [2]四川省冶金地质勘察局六零四大队,四川广元628017

出　　处：《中国钼业》2011年第4期18-21,共4页China Molybdenum Industry

摘　　要：东秦岭稀有金属矿床成矿及分布以河南省卢氏、南召两地区几个典型矿床最具代表性,归纳其总体特征为:1)矿床的形成与地壳早期板块俯冲作用有密切关联,矿床均产于俯冲带中部;2)深大断裂与区域大断裂交汇部位是稀有金属矿赋存的最佳场所;3)原生矿全部产于元古界变质岩之中;4)成矿母岩为碱性花岗岩,成岩成矿时代以加里东早期为主,华力西期次之;5)赋矿脉岩为伟晶岩脉,常形成脉岩群;6)矿床成因类型为花岗伟晶岩浆分异交代型铌钽矿床。Referring the East Qinling rare metals deposit ore-form and distribution,Lushi and Nanzhao in Henan were the most representative areas.The overall features are： 1） deposit formation and crust early plate subduction have had a close association,deposit are produced all in central subduction zones;2） deep fault and regional major fault intersection part is the best place to rare occurrence alukeqinqi;3） the original mineral all originated in proterozoic era metamorphic rocks;4） mother rock is an alkaline granite,diagenetic mineralization epoch with early Caledonian primarily,variscan second;5） the host vein rocks are pegmatitic dikes,often form dike group;6） deposit genetic types of granitic Pegmatite lava differentiation replacement type nb-ta mineral deposits.

关 键 词：稀有金属矿 成矿母岩 成矿时代 伟晶岩型 矿石矿物 

分 类 号：P618.6[天文地球—矿床学]