Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland)
Pyrite from the central part of the Myszków porphyry deposit in Poland was investigated using a combination of reflected and transmitted polarizing microscopy, back-scattered imaging with energy-dispersive X-ray spectroscopy, and Raman micro-spectroscopy. Five generations of pyrite (I–V) found in hy...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/11/12/1426 |
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| author | Beata Naglik Magdalena Dumańska-Słowik Tomasz Toboła Paweł Derkowski Ryszard Habryn Marek Markowiak |
| author_facet | Beata Naglik Magdalena Dumańska-Słowik Tomasz Toboła Paweł Derkowski Ryszard Habryn Marek Markowiak |
| author_sort | Beata Naglik |
| collection | DOAJ |
| description | Pyrite from the central part of the Myszków porphyry deposit in Poland was investigated using a combination of reflected and transmitted polarizing microscopy, back-scattered imaging with energy-dispersive X-ray spectroscopy, and Raman micro-spectroscopy. Five generations of pyrite (I–V) found in hydrothermal veins were distinguished, differing in morphology, microtexture, and the types and amounts of solid inclusions. In general, pyrite hosts a diversity of mineral inclusions, including both gangue and ore phases, i.e., chlorite, quartz, monazite, cerianite-(Ce), xenotime, K-feldspars, albite, sericite, barite, magnetite, chalcopyrite, galena, sphalerite, bastnaesite (Ce), bismuthinite, native silver, cassiterite, rutile, anatase, and aikinite-group species. The presence of inclusions is good evidence of various stages of the evolution of the hydrothermal lode system ranging from high- to low-temperature conditions. During the formation of stockworks, some fluctuations in the physicochemical conditions of mineralizing fluids were indicated by the occurrence of cassiterite formed from acidic, reducing solutions, and hematite hosted in xenotime or REE phases found in pyrite, which signal more oxidizing conditions. Periodically, some episodes of boiling in the hydrothermal, porphyry-related system were recorded. They were mainly evidenced by the presence of (1) lattice-bladed calcite found in the close vicinity of pyrite II, (2) irregular grain edges of pyrite I, (3) clustered micropores in pyrite I, and (4) the variety of mineral inclusions hosted in I and II generations of pyrite. |
| first_indexed | 2024-03-10T03:30:44Z |
| format | Article |
| id | doaj.art-cf0f0b252b35462288aa8fbd93274a33 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T03:30:44Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-cf0f0b252b35462288aa8fbd93274a332023-11-23T09:42:41ZengMDPI AGMinerals2075-163X2021-12-011112142610.3390/min11121426Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland)Beata Naglik0Magdalena Dumańska-Słowik1Tomasz Toboła2Paweł Derkowski3Ryszard Habryn4Marek Markowiak5Polish Geological Institute-National Research Institute, Upper Silesian Branch, 41-200 Sosnowiec, PolandFaculty of Geology, Geophysics, and Environmental Protection, AGH University of Science and Technology, 30-059 Kraków, PolandFaculty of Geology, Geophysics, and Environmental Protection, AGH University of Science and Technology, 30-059 Kraków, PolandPolish Geological Institute-National Research Institute, 00-975 Warsaw, PolandPolish Geological Institute-National Research Institute, Upper Silesian Branch, 41-200 Sosnowiec, PolandPolish Geological Institute-National Research Institute, Upper Silesian Branch, 41-200 Sosnowiec, PolandPyrite from the central part of the Myszków porphyry deposit in Poland was investigated using a combination of reflected and transmitted polarizing microscopy, back-scattered imaging with energy-dispersive X-ray spectroscopy, and Raman micro-spectroscopy. Five generations of pyrite (I–V) found in hydrothermal veins were distinguished, differing in morphology, microtexture, and the types and amounts of solid inclusions. In general, pyrite hosts a diversity of mineral inclusions, including both gangue and ore phases, i.e., chlorite, quartz, monazite, cerianite-(Ce), xenotime, K-feldspars, albite, sericite, barite, magnetite, chalcopyrite, galena, sphalerite, bastnaesite (Ce), bismuthinite, native silver, cassiterite, rutile, anatase, and aikinite-group species. The presence of inclusions is good evidence of various stages of the evolution of the hydrothermal lode system ranging from high- to low-temperature conditions. During the formation of stockworks, some fluctuations in the physicochemical conditions of mineralizing fluids were indicated by the occurrence of cassiterite formed from acidic, reducing solutions, and hematite hosted in xenotime or REE phases found in pyrite, which signal more oxidizing conditions. Periodically, some episodes of boiling in the hydrothermal, porphyry-related system were recorded. They were mainly evidenced by the presence of (1) lattice-bladed calcite found in the close vicinity of pyrite II, (2) irregular grain edges of pyrite I, (3) clustered micropores in pyrite I, and (4) the variety of mineral inclusions hosted in I and II generations of pyrite.https://www.mdpi.com/2075-163X/11/12/1426pyriteporphyry ore depositinclusionmicrotextureboiling |
| spellingShingle | Beata Naglik Magdalena Dumańska-Słowik Tomasz Toboła Paweł Derkowski Ryszard Habryn Marek Markowiak Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) Minerals pyrite porphyry ore deposit inclusion microtexture boiling |
| title | Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) |
| title_full | Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) |
| title_fullStr | Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) |
| title_full_unstemmed | Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) |
| title_short | Diversity of Pyrite-Hosted Solid Inclusions and Their Metallogenic Implications—A Case Study from the Myszków Mo–Cu–W Porphyry Deposit (the Kraków–Lubliniec Fault Zone, Poland) |
| title_sort | diversity of pyrite hosted solid inclusions and their metallogenic implications a case study from the myszkow mo cu w porphyry deposit the krakow lubliniec fault zone poland |
| topic | pyrite porphyry ore deposit inclusion microtexture boiling |
| url | https://www.mdpi.com/2075-163X/11/12/1426 |
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