地质通报2015，Vol.34Issue(12)：2219-2226,8.
康滇地轴巨粒晶质铀矿的发现及其地质意义
The discovery of coarse-grained uraninite in Kangdian Axis and its geological significance
摘要
Abstract
The uraninite-bearing quartz veins from Haitain area of Miyi County along Kangdian Axis occur in the Wumaqing For-mation consisting mainly of Late Proterozoic biotite-plagioclase schist, which was subjected to migmatization and controlled by duc-tile-brittle fault zone. Uraninite exhibits black and euhedral crystals composed of combination of cubes and octahedra as well as mi-nor rhombic dodecahedra and cubes, with semi-metallic luster, from 0.5cm to 1cm in size. Mineral assemblage of uranium mineral-ization includes mainly quartz, uraninite, sphene and molybdenite. Researches show that uraninite formed in a high temperature and pressure geological environment in deep crust, derived from high temperature, acidic and reducing ore fluids. This discovery implies that Panxi area has especially favorable conditions for medium-high temperature hydrothermal vein-type uranium mineralization controlled by ductile-brittle faults in the migmatization region.关键词
晶质铀矿/石英脉/康滇地轴Key words
uraninite/quartz veins/Kangdian Axis分类
天文与地球科学引用本文复制引用
张成江,陈友良,李巨初,徐争启,姚健..康滇地轴巨粒晶质铀矿的发现及其地质意义[J].地质通报,2015,34(12):2219-2226,8.基金项目
国家自然科学基金项目(批准号:41472073)和中国核工业地质矿产事业部重点科研项目(编号:201479) （批准号:41472073）
