Rare and radioactive elements in metasomatites of gold-mining deposits in the Amur region

In the metasomatites of gold deposits, high concentrations of ore elements - As, Sb, Ag, and Au - are found. Elevated concentrations of W, Mo and Pb are noted. Nb and Ta accumulate in metasomatites of the Albynskoe deposit. A high correlation was revealed between radioactive and rare-earth elements at Pokrovka and Pioner, lower at Malomyr and the lowest at Albyn. Of the rare elements, Th and U correlate positively with Zr, Hf, Nb, and Ta, and of the ore ones, with molybdenum, tungsten, tin, and bismuth. Radioactive elements have a negative bond with silver, antimony and cadmium.