内蒙古中部典型花岗岩型稀有金属矿床特征和控矿因素

内蒙古是中国“三稀”资源（稀有、稀土、稀散）大省之一,其中铌（Nb₂O₅）、稀土储量位居中国之首.华北陆块北缘成矿区是典型的稀有～有色多金属成矿区,成矿作用与广泛发育的燕山期花岗质岩浆活动密切相关.内蒙古中部地处华北陆块北缘成矿区中段,以石灰窑和赵井沟2个花岗岩稀有金属矿床为研究对象,以摸清“三稀”典型矿床特征以及控制矿床形成和分布的有关因素为目的,以典型案例研究为方法,探讨研究区成矿背景、成矿特征、控矿等要素,推测在内蒙古中部地区可能存在稀有金属的区域性成矿作用. 

Ore characteristics and ore controlling factors of rare metal deposits of typical granite type in the middle of the inner mongolia autonomous region

Inner Mongolia Autonomous Region is one of the largest resource provinces with three type rare mineral resources(rare resources, rare earth scattered resources) of China. It has the largest reserve of Niobium (Nb₂O₅) and rare earth among all the provincial-level administrative divisions. The northern margin metallogenic area of North China block is a typical rare colored multi metal metallogenic area, in which mineralization is closely related to well developed granitic magmatism of Early Yanshan period. The middle of the Inner Mongolia Autonomous Region is located in the middle section of the northern margin of the North China block, using the two granite rare metal deposits in lime kiln and Zhao Jing gou as the cases, A typical case study is taken as a method in order to clarify the characteristics of the three dilute typical deposits and control the factors related to the formation and distribution of the deposits, this paper studies factors such as metallogenic background, metallogenic characteristics and ore control, It is speculated that regional mineralization of rare metals may exist in the middle of the Inner Mongolia Autonomous Region.