MOBILE FORMS OF NOBLE METALS IN LOOSE DEPOSIT GOLD OF LAYER POKROVSKOE (UPPER AMUR REGION)
Are represented the results of studies of the mobile forms of noble metals in the friable deposits of Pokrovskiy of gold-ore Upper Amur Region layer. Are investigated 9 extraction systems (H <sub>2</sub>O; HO + [H]+; HO + [OH]I; CH3COOH + NH4OH; CHCOOH + NH2OH; KCl; KBr; Kl; H2O2 + HNO3) with adsorptive interactions (0100 kJ/mol), from the thermodynamic (AG <sup>0</sup>) and physical chemistry parameters (pH, E°, concentration ppb), which made it possible to divide mobile forms Ag+, Pf <sup>+</sup>, Au+ to the physically (0-5 kJ/mol) and chemically (15100 kJ/mol) adsorbed complex compounds and to establish the quantitative relations 80% and 20% between them. The noble metal atoms are mobile in physical adsorbed group, but active centre takes 20% Ag+, 40% P <sup>2</sup> and 50% Au+ in chemical adsorbed group.