Distribution of trace elements in ore-forming groundwater in infiltration deposits

The hydrogeochemistry of trace components in bed-infiltration deposits was examined by highly sensitive atomic absorption and neutron activation methods (with radiochemical preparation). As a result of a decrease in pH, aqueous solutions at the front of the zone of oxidation of pyritic, low-carbonate beds are enriched in alkaline earths, rare-earth metals, and chalcophile elements, which are then redeposited in adjacent uranium ore zones across alkaline, reducing, and hydrogen sulfide barriers