New mineral forms of PGE in the black-shale noble metal mineralization of KMA, Central Russia

Among new sources of PGE and gold, highly carbonaceous stratified sequences and their metasomatites deserve special attention as unique carriers of noble metals and producers of placers. Extremely wide development of highly carbonaceous sequences at significant extension, multilevel stratification, and high contents of New Mineral Forms of PGE in the Black-Shale Noble Metal Mineralization of KMA, Central Russia