Formed in Crust The quality and quantity of uranium minerals and (or) uranium bearing material aggregates in a specific geological environment can meet the requirements of the current uranium industry, and can be economically exploitation And utilization. The concept of uranium deposits is dynamic. With the development of social productivity, science and technology and the change of people's demand for mineral raw materials, the category of uranium deposits is also changing. Some "rocks" or low-grade mineralized rocks that had no use value in the past may now be economically recoverable uranium deposits, such as in-situ leachable sandstone type uranium deposits. [1]
According to some common geological characteristics of uranium deposits, such as host rock, formation mechanism (genesis), ore control structure, alteration, mineral association, etc., uranium deposits are divided into several types. The study of uranium ore deposit science takes the genesis of ore deposits as the main classification principle, and divides uranium deposits into endogenetic uranium deposits and exogenetic uranium deposits. Chinese uranium geologists divide China's uranium deposits into four types: granite type, volcanic rock type, carbon silicon mudstone type and sandstone type. The new classification scheme of uranium deposits proposed by the International Atomic Energy Agency classifies uranium deposits into 15 types: unconformity contact type, quasi unconformity light metamorphic type, vein type, collapse breccia tube type, supergene type, quartz pebble conglomerate type, breccia complex type, intrusive rock type, phosphorite type, volcanic rock type, metasomatic rock type, synmetamorphic type, lignite type and black shale type. [2]
