Superposition metallogenic model of sandstone-type uranium deposit in the Northeastern Ordos basin

The geological setting of sandstone-type uranium minerallization and deposit characteristics in northestern Ordos basin are elaborated and the metallogenic mechanism is expatiated in uranium source,migration,preciptiation and enrichment.It is believed that the deposit is formed with multi-source,fluid,metallogenic process and with complex superposition.Uranium menieraliztion in this deposit is proposed as superposition metallogenic model.