Analysis on the Characteristics and Prospecting of Rare Earth Ore in the Western Section of Xiaoqinling

The western section of Xiaoqinling is an important metallogenic area of REE. Controlled by Huayangchuan fault, Jinduicheng-Qingpinggang fault and Archean metamorphic basement, two types of rare earth mineralization such as carbonatite type and pegmatite type, are produced in this area. The main ore-bearing rock of carbonatite type is all kinds of carbonate dike, which is bounded by Xiaohe fault. There are obvious differences in the mineral assemblages between the north and the south ore-bearing carbonates. The rare earth minerals are mainly yttrium phosphate, monazite and bastnaesite. The rare earth elements are mainly light rare earth, the heavy rare earth relatively high, and gradually enriching around Huayangchuan. The main ore-bearing rock of rare earth ore in the pegmatite type is epidote-bearing pegmatite. The mineral-bearing rare earth is epidote.The rare earth elements are mainly light rare earth. The formation time of the two types of rare earth mineralization is quite different. Carbonatite type was formed in the Indosinian period, and pegmatite type was formed in the late Paleoproterozoic period. Many rare earth deposits (points) have been found in the area, with a good metallogenic prospect.the carbonate type rare earth deposits (points) and the carbonate vein belt especially has great potentiality.