Mineralization of Te and Se was found in gold deposits uranium occurrences, located the Paleoproterozoic greenstone belts Northern Fennoscandia. These are different genesis, but all them formed at late stages Svecofennian orogeny, they have common geochemical association metals Au, Cu, Co, U, Bi, Te, Se. The prevalent minerals Ni Fe tellurides melonite frohbergite, Pb telluride altaite. Bismuth...

Abstract Whether giant porphyry ore deposits are the products of single, short-lived magmatic-hydrothermal events or multiple over a prolonged interval is topic considerable debate. Previous studies, however, have all been devoted to Cu and Cu-Mo deposits. In this paper, we report high-precision isotope dilution-negative-thermal ionization mass spectrometric (ID-N-TIMS) molybdenite Re-Os ages f...

This review article deals with a new element 'nipponium' reported by Masataka Ogawa in 1908, and with its scientific and science historical background. Ogawa positioned nipponium between molybdenum and ruthenium in the periodic table. From a modern chemical viewpoint, however, nipponium is ascribable to the element with Z=75, namely rhenium, which was unknown in 1908. The reasons for this corre...

Redox potential (Eh) control plays a significant role during sulfide mineral flotation by influencing the reactions on surface of minerals and accordingly behaviour. In this study, metallurgical performance typical copper minerals, molybdenite as well gangue (e.g., pyrite, tennantite, enargite) under different pH Eh conditions cell were investigated. The molybdenum processing plant at Sungun co...