A type of attention deserved uranium mineralization in Xiangshan uranium ore field

It is different to the known hydromica-fluorite type and albite type uranium mineralization type, Longbaling uranium deposit occurs in porphyroclastic rhyolite as the mineral group of quartz-uraninite. According to the occurrence forms,chemical compositions of mineralized rock and compositions and forming sequences of the mineral groups, the mineralization type is different from the known uranium mineralization type, but is related to two uranium mineralization types to some degrees. Introduction to this type of mineralization may be helpful to understand the mineralization and prospecting evaluation in Xiangshan uranium ore field. (authors)