Study on Multistage Uranium Mineralization of Hongshiquan Deposit in Longshoushan Metallogenic Belt

Hongshiquan deposit in Chinais the most typical uranium deposit of pegmatite type.In recent years,Hongshiquan deposit is found to have multi-stage uranium mineralization. Different ore,uranium minerals and alteration characteristics formed in different mineralization periods.Studies of different uranium mineralization show that in the late Zhongtiao period,granitic magma evolved into the light flesh red pegmatite granite ore rich in uraninite, with the ore concentrated in the core of the pegmatite granite, basically without alteration.In the Hercynian ore bearing hydrothermal solution, sodium metasomatic mineralization occurred along the contact fracture zone between the pegmatite granite and biotiteplagioschist,forming purple red pegmatite granite ore and asphalt uranium mineral.The ore develops albitization,hematite mineralization, carbonation, chloritization and other alteration.Therefore, the core of pegmatite granite and the contact fracture zone between pegmatite granite and schist are the important prospecting areas.