Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia
We describe occurrences of platinum-group minerals (PGM) and an uncommon mineral enriched in Cl, and provide a brief review of Cl-bearing minerals associated with basic–ultrabasic complexes. An unusual phosphohedyphane-like phase (~30 µm), close to CaPb<sub>4</sub>(PO<sub>4</sub...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/5/624 |
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| author | Andrei Y. Barkov Andrey A. Nikiforov Larisa P. Barkova Robert F. Martin |
| author_facet | Andrei Y. Barkov Andrey A. Nikiforov Larisa P. Barkova Robert F. Martin |
| author_sort | Andrei Y. Barkov |
| collection | DOAJ |
| description | We describe occurrences of platinum-group minerals (PGM) and an uncommon mineral enriched in Cl, and provide a brief review of Cl-bearing minerals associated with basic–ultrabasic complexes. An unusual phosphohedyphane-like phase (~30 µm), close to CaPb<sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>Cl, occurs in one of the PGM-bearing veins of massive sulfides in the Monchepluton layered complex, Kola Peninsula, Russia. These veins consist of varying amounts of pyrrhotite, pentlandite, chalcopyrite, pyrite and accessory grains of galena; they are fairly abundant in the heavy-mineral concentrate, as are small (<0.1 mm) grains of PGM: michenerite, sperrylite, Bi-enriched members of the merenskyite–moncheite series and kotulskite, also rich in Bi. The PGE mineralization is attributed to a low-temperature deposition at the hydrothermal stage. The pyromorphite–phosphohedyphane solid solution likely formed as a secondary phase under conditions of a progressive build-up of oxygen fugacity via oxidation reactions of a precursor grain of galena and involving Ca, as an incompatible component of the sulfides, in a medium of residual fluid enriched in Cl. |
| first_indexed | 2024-03-10T03:21:18Z |
| format | Article |
| id | doaj.art-9769f173d1394481a692c52dbd856f41 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T03:21:18Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-9769f173d1394481a692c52dbd856f412023-11-23T12:19:36ZengMDPI AGMinerals2075-163X2022-05-0112562410.3390/min12050624Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, RussiaAndrei Y. Barkov0Andrey A. Nikiforov1Larisa P. Barkova2Robert F. Martin3Research Laboratory of Industrial and Ore mineralogy, Cherepovets State University, 162600 Cherepovets, RussiaResearch Laboratory of Industrial and Ore mineralogy, Cherepovets State University, 162600 Cherepovets, RussiaResearch Laboratory of Industrial and Ore mineralogy, Cherepovets State University, 162600 Cherepovets, RussiaDepartment of Earth and Planetary Sciences, McGill University, Montreal, QC H3A 0E8, CanadaWe describe occurrences of platinum-group minerals (PGM) and an uncommon mineral enriched in Cl, and provide a brief review of Cl-bearing minerals associated with basic–ultrabasic complexes. An unusual phosphohedyphane-like phase (~30 µm), close to CaPb<sub>4</sub>(PO<sub>4</sub>)<sub>3</sub>Cl, occurs in one of the PGM-bearing veins of massive sulfides in the Monchepluton layered complex, Kola Peninsula, Russia. These veins consist of varying amounts of pyrrhotite, pentlandite, chalcopyrite, pyrite and accessory grains of galena; they are fairly abundant in the heavy-mineral concentrate, as are small (<0.1 mm) grains of PGM: michenerite, sperrylite, Bi-enriched members of the merenskyite–moncheite series and kotulskite, also rich in Bi. The PGE mineralization is attributed to a low-temperature deposition at the hydrothermal stage. The pyromorphite–phosphohedyphane solid solution likely formed as a secondary phase under conditions of a progressive build-up of oxygen fugacity via oxidation reactions of a precursor grain of galena and involving Ca, as an incompatible component of the sulfides, in a medium of residual fluid enriched in Cl.https://www.mdpi.com/2075-163X/12/5/624pyromorphite–phosphohedyphane solid solutionchlorineCl-rich compoundsplatinum-group mineralsmassive sulfide veinsbasic–ultrabasic complexes |
| spellingShingle | Andrei Y. Barkov Andrey A. Nikiforov Larisa P. Barkova Robert F. Martin Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia Minerals pyromorphite–phosphohedyphane solid solution chlorine Cl-rich compounds platinum-group minerals massive sulfide veins basic–ultrabasic complexes |
| title | Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia |
| title_full | Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia |
| title_fullStr | Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia |
| title_full_unstemmed | Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia |
| title_short | Occurrences of Pd–Pt Bismuthotellurides and a Phosphohedyphane-Like Phase in Sulfide Veins of the Monchepluton Layered Complex, Kola Peninsula, Russia |
| title_sort | occurrences of pd pt bismuthotellurides and a phosphohedyphane like phase in sulfide veins of the monchepluton layered complex kola peninsula russia |
| topic | pyromorphite–phosphohedyphane solid solution chlorine Cl-rich compounds platinum-group minerals massive sulfide veins basic–ultrabasic complexes |
| url | https://www.mdpi.com/2075-163X/12/5/624 |
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