Principles of geochemical classification (criteria for identification of geochemical types) of ore-hosting sediments in hydrogenic uranium deposits

We propose a geochemical classification of ore-hosting sediments, which reflects the total content of components in rocks that influence redox processes. A geochemical type is understood as a group of rocks characterized by a certain, different from others, value of the redox potential of an aqueous solution in equilibrium with the rock. The classification can be used to predict hydrogenic uranium mineralization (sandstone type), as it enables to assess the potential ore content of ore-controlling zones of bed oxidation.