GENETIC PECULIARITIES OF THE GOLD-TELLURIUM-BISMUTH MINERALIZATION AT THE EMY ORE OCCURRENCE (Khabarovsky Kray, Russia)
Tellurium-bismuth mineralization at the Emy ore occurrence, located on the northwestern flank of the Svetloye gold deposit (Ohotsky District), is characterized by higher selenium and lower sulfur content in ores as well as by the variety of mineral associations found to contain, along with prevailing tellurobismuthite, intermediary members of an isomorphic tellurobismutite-tellurantimonite sequence and native tellurium, gold, silvanite, goldfieldite, and coloradoite associated with them. The close accretions of tellurium minerals with cassiterite available in ores should be specifically noticed. The histogram of homogenization temperatures of the quartz containing metallization has bimodal distribution in areas 240-270 and 310-370°C, which indicates the two-stage metallization formation, while Bi and Sn minerals presence imply its volcano-plutonogenic genesis.