蒙古国12605A矿区萤石矿特征及其成因分析

通过对矿区开展地质勘查工作，在深部控制了萤石矿体的规模、产状、形态和空间位置。萤石矿体呈透镜状、窜珠状，产于NW、NE向断裂构造带中，矿体形态、产状受断裂构造所控制。矿石类型主要为萤石型、石英一萤石型、方解石一萤石型，多呈致密块状、角砾状、网脉状及条带状构造。根据矿体产出特点及围岩蚀变特征，结合国内类似矿床的成矿地质特征，认为矿床成因类型为中一低温热液裂隙充填型。

Characteristics and Genetic Analysis of Fluorite Ore of 12605A Mining Area in Mongolia

Geological exploration work was carried out, the size, occurrence, shape and spatial location of the fluorite ore were controlled in the deep. The fluorite ore was lenticutar and toruloid in NW and NE trending fault zone, the shape and occurrence were controlled by faults. The ore＇s types were fluorite, quartz-fluorite and calcite-fluorite, mostly were dense massive, brecciated, stockwork and banded structure. According to the c put characteristics of the ore and wall rock alteration, combined with similar mineralization geological features, genetic type of that deposit was low-to-moderate hydrothermal fissure filling type.