First Data About the Manifestations of the Noble-Metallically-Rare-Earth Mineralization in the Graphytonic Rocks of the Northern Market of the Khankai Terrain
In the graphitized rocks of the northern margin of the Khankai terrane (Primorsky Krai), new manifestations of noble and rare-earth metals have been revealed with the participation of the authors. Ore mineralization is characterized by the presence of high-grade gold and silver, as well as monazite, xenotime, sulphides (pyrite, pyrrhotite, pentlandite, chalcopyrite, sphalerite, Co-containing arsenopyrite, galena, bismuthin, tetradymite), barite, rutile, uraninite. Graphite ore formations in the value of δ13C (from-2.1 to -5.5% 0) corresponds to mantle carbon. It seems that the main suppliers of carbon in the formation of noble metals, rare-earth-graphite ores were deep fluid flows.