Platinum-Group and Chalcophile Element Distributions in Ni-Cu-(PGE) Ores at Rozany Deposit, Bohemian Massif

0464951 - GLÚ 2017 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Haluzová, Eva - Ackerman, Lukáš - Hrstka, Tomáš - Pašava, J.
Platinum-Group and Chalcophile Element Distributions in Ni-Cu-(PGE) Ores at Rozany Deposit, Bohemian Massif.
Mineral resources in a sustainable world : proceedings. Nancy: ASGA, 2015 - (André-Mayer, A.; Cathelineau, M.; Muchez, P.; Pirard, E.; Sindern, S.), s. 943-945. 1/5. ISBN 978-2-85555-066-4.
[SGA Biennial Meeting on Mineral Resources in a Sustainable World /13./. Nancy (FR), 24.08.2015-27.08.2015]
Institucionální podpora: RVO:67985831
Klíčová slova: Ni-Cu-(PGE) ore * pyrrhotite * chalcopyrite * PGE * sperrylite
Kód oboru RIV: DB - Geologie a mineralogie

The Rozany deposit hosts massive and disseminated low-grade Ni-Cu-(PGE) ores associated with gabbroic dykes (400 Ma). The ores are characterized by predominant occurrence of pyrrhotite (up to 82 vol. %) accompanied by chalcopyrite, minor Fe-Ni sulfides (violarite and pentlandite) and rare pyrite and galena. The mineralized rocks are strongly enriched in chalcophile (e.g., Se, Te, Bi) platinum-group elements (PGE) and rhenium with total PGE contents up to similar to 200 ppb. The pyrrhotite-dominated massive ores contain very high total I-PGE (Os, Ir, Ru) and Re contents paralleled (asi lepe accompanied) by low Pt and only elevated Pd concentrations. In contrast, the Cu-rich ores exhibit high Pt-Pd contents contrasted at relative low I-PGE values. In addition to previously reported platinum-group minerals (PGM) such as sperrylite and unnamed Pd-tellurides, we newly identified Pt-Te-Bi-(Pd-Pb) (most likely moncheite) and Pt-As-Te (vincentite?) phases.
Trvalý link: http://hdl.handle.net/11104/0263693