The geochemical characteristics of the phosphorite from Mankhan-Uul deposit, Mongolia

Phosphorite of Mankhan-Uul deposit consists of silica type's phosphorite. Mankhan-Uul's phosphorite dominated quartz and hydrogen carbonate phosphate minerals. Toxic elements such as a Pb, As, Ni, Cr, Cd, Co, Sr, Си, Zn, Mn concentrations were lower than the average world phosphate and Clark of phosphate rock's concentrations. Average concentration of U was 16.35 g/ton in Mankhan-Uul deposit and it was lower than average world phosphate. First time we had determined enrichment factor (EF) of toxic elements in the phosphorite from Mankhan-Uul. The result shows that all toxic elements EF of Mankhan-Uul deposit except Cr were lower than EF of the world average phosphate.