此类矿床分布于碱性岩广泛发育的地区。在矿床范围内,常见矿化的破碎带、交代矿体、透镜状和脉状体,它们都由碳酸盐(方解石、铁白云石、菱铁矿)、萤石、重晶石组成,有时还有天青石、氟碳酸盐以及希土金属磷酸盐、硅酸盐。美国芒廷帕斯特大型的铈族希土矿床即属此类。苏联地质人员在辉长岩系列的碱性岩分布区,发 Such deposits are distributed in the extensive development of alkaline rock area. In the area of ​​the deposit, common mineralized fractured zones account for ore bodies, lenticulars and veins, all of which are composed of carbonates (calcite, iron dolomite, siderite), fluorite, barite and sometimes There are celestite, fluorocarbons and rare earth metal phosphates, silicates. This is the case with the large Cerium-type rare earth deposit in Mountain Pass, USA. Soviet geology personnel in the gabbro series of alkaline rock distribution, hair