Platinum group minerals from chromite ores of the Rai-Iz ultramafic massif (Polar Ural): new data
- Autores: Yurichev А.N.1, Chernyshov A.I.1, Korbovyak E.V.1
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Afiliações:
- Tomsk State University
- Edição: Volume CLIII, Nº 6 (2024)
- Páginas: 64-93
- Seção: МИНЕРАЛЫ И ПАРАГЕНЕЗИСЫ МИНЕРАЛОВ
- URL: https://journal-vniispk.ru/0869-6055/article/view/287026
- DOI: https://doi.org/10.31857/S0869605524060038
- EDN: https://elibrary.ru/NWOZCL
- ID: 287026
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Resumo
In chromite ores of Central and No. 214 deposits of the Rai-Iz ultramafic massif, which is part of the Khadatinsky ophiolite belt of the Polar Urals, along with previously known platinum group minerals (PGM), native ferrous ruthenium, native ruthenium nickel (iridium-ruthenium), native platinum, new unnamed intermetallic compound (Rh,Pt)3Zn (with Rh content of up to 88 wt %), As-rich disulfides of laurite–erlichmanite series (with As content of up to 4.2 wt %) and unnamed sulfoarsenide with stoichiometric formula (Ir,Os)(S,As) were discovered and characterized for the first time. Grains of native ruthenium with Ru content of up to 80.5 wt % were diagnosed for the first time, against the previously known Ru content of up to 36.8 wt %. The set of PGMs of massif has been expanded from 24 to 31 mineral varieties. It has been shown that diversity of PGMs depends on density of dissemination of chromite ores, degree of their cataclasis and metamorphic transformation. Solid (massive) and noticeably metamorphosed chromite ores exhibit widest and most diverse set of PGMs. The Rai-Iz massif has preserved platinum group complexes that reflect features of upper mantle deep mineral formation. Such early mantle-magmatic formations include native osmium, Ir-containing osmium, native iridium and sulfides (disulfides of the laurite-erlichmanite series, kashinite, and cuproiridsite). Formation of other specific native minerals and intermetallics of PGE, with participation of mobile metals (Ni, Cu, Zn, Mn, As) and removal of part of sulfide sulfur, is associated with cataclasis and metamorphic transformation of ore chrome spinels and primary PGM included in them. The identified secondary PGMs were formed mainly in regional-metamorphic (regressive) stage [native ruthenium, ruthenium nickel, unnamed MSS (Ru,Ni,Os,Fe), As-rich disulfides of the laurite-erlichmannite series and unnamed sulfoarsenide (Ir,Os)(S,As)] and, to lesser extent, in contact-metamorphic (progressive) stage (native ferrous ruthenium, native platinum and new intermetallic of rhodium (Rh,Pt)3Zn).
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Sobre autores
А. Yurichev
Tomsk State University
Autor responsável pela correspondência
Email: juratur@yandex.ru
Rússia, Tomsk
A. Chernyshov
Tomsk State University
Email: juratur@yandex.ru
Rússia, Tomsk
E. Korbovyak
Tomsk State University
Email: juratur@yandex.ru
Rússia, Tomsk
Bibliografia
- Anikina E.V., Moloshag V.P., Alimov V.Yu. Platinoid minerals in chromites of the Voykar-Syninsky and Rai-Iz massifs. Reports Acad. Sci. 1993. Vol. 330. N 5. P. 613–616 (in Russian).
- Anikina E.V. Platinoids in chromium ores of the Polar Urals. Syktyvkar: IG Komi Scientific Center Ural Branch RAS, 1995. 40 p. (in Russian).
- Bai W., Robinson P.T., Fang Q., Yang J., Yan B., Zhang Z., Xu-Feeng Hu, Zhou M.-F., Malpas J. The PGE and base metal alloys in the podiform chromitites of the Luobusa ophiolite, Southern Tibet. Canad. Miner. 2000. Vol. 38. N 3. P. 585–598.
- Bezmen N.I., Brugmann G.E., Naldrett A.J. Mechanism of concentration of platinum group elements: partitioning between silicate and sulfide melts. Int. Geol. Rev. 1991. Vol. 33. N 8. P. 784–792.
- Distler V.V., Kryachko V.V., Yudovskaya M.A. Formation conditions of platinum-group metals in chromite ores of the Kempirsai ore field. Geol. Ore Deposits. 2003. Vol. 45. N 1. P. 37–65 (in Russian).
- Garuti G., Zaccarini F. In situ alteration of platinum-group minerals at low temperature: evidence from serpentinized and weathered chromitites of the Vourinos Complex, Greece. Canad. Miner. 1997. Vol. 35. P. 611–626.
- Garuti G., Zaccarini F., Moloshag V., Alimov V. Platinum-group minerals as indicators of sulfur fugacity in ophiolitic upper mantle: an example from chromitites of the Rai-Iz ultramafic complex, Polar Urals, Russia. Canad. Miner. 1999. Vol. 37. P. 1099–1115.
- Goncharenko A.I. Deformation and petrostructural evolution of alpine-type ultramafic rocks. Tomsk: Publishing House of Tomsk University, 1989. 404 p. (in Russian).
- Gurskaya L.I., Smelova L.V., Kolbantsev L.R., Lyakhnitskaya V.D., Lyakhnitsky Yu.S., Shakhova S.N. Platinoids of chromite-bearing massifs of the Polar Urals. Saint Petersburg: VSEGEI, 2004. 306 p. (in Russian).
- Harris D.C., Cabri L.J., Nomenclature of platinum-group-element alloys: review and revision. Canad. Mineral. 1991. Vol. 29. P. 231–237.
- Kucherina P.M., Popov I.I., Pryamonosov A.P., Krasheninnikov A.L., Krasheninnikova L.I., Perminov I.G., Tsvigun L.N., Gaptulkadyrov M.M., Mustakimova E.A. Geological Structure and Mineral Resources of the Northwestern Voikar Synclinorium and the Rai-Iz Massif Area and Borders. 1:50000. Information Report. Vol. 1. Polar Ural Geological Exploration Expedition, 1991. 431 p. (in Russian).
- Lesnov F.P., Podlipskii M.Yu., Polyakov G.V., Palesskii S.V. Geochemistry of accessory chrome-spinellides from rocks of the Ergakskii chrome-bearing hyperbasite massif (Western Sayan) and conditions of its formation. Doklady Earth Sci. 2008. Vol. 423. N 1. P. 1245–1249.
- Makeyev A.B. Forms of occurrence of platinoides in alpine-type ultrabasites of the Urals. In: Geology and genesis of platinum metal deposits. Moscow: Nauka, 1994. P. 175–183 (in Russian).
- Makeyev A.B. Mineralogy of alpine-type ultrabasites of the Urals. Saint Petersburg: Nauka, 1992. 197 p. (in Russian).
- Makeyev A.B., Brianchaninova N.I. Native platinum group metals in bedrock ores and placers of the Polar, Subpolar, Northern Urals and Timan. In: Ultramafic-mafic complexes: geology, structure, ore potential. Ulan-Ude: Publishing house of Buryat State University, 2017. P. 185–188 (in Russian).
- Makeyev A.B., Brianchaninova N.I. Topomineralogy of ultramafic rocks of the Polar Urals. Saint Petersburg: Nauka, 1999. 252 p. (in Russian).
- Makeyev A.B., Brianchaninova N.I., Kraplya E.A. Geological and mineralogical model of evolution of platinum-bearing alpine-type ultrabasites of the Urals. In: Platinum of Russia. Vol. IV. Moscow: Geoinformmark, 1999. P. 176–183 (in Russian).
- Makeyev A.B., Kotov A.A., Begizov V.D., Karachentsev S.G., Vyalsov L.N. Composition and properties of platinum group metals of Pt–Ru–Os–Ir system from alluvial deposits of the Urals. In: Mineralogical crystallography and properties of minerals. Trans. Inst. Geol. Komi branch USSR Acad. Sci. Syktyvkar, 1984. P. 95–103 (in Russian).
- Makeyev A.B., Perevozchikov B.V., Afanasyev A.K. Chromite content of the Polar Urals. Syktyvkar: Komi Branch of the USSR Acad. Sci., 1985. 152 p. (in Russian).
- Malitch K.N., Anikina E.V., Badanina I.Y., Pushkarev E.V., Khiller V.V., Belousova E.A. Chemical composition and osmium-isotope systematics of primary and secondary PGM assemblages from high-Mg chromitite of the Nurali lherzolite massif, the South Urals, Russia. Geol. Ore Deposits. 2016. Vol. 58. N 1. P. 1–19.
- Melcher F., Grum W., Simon G., Thalhammer T.V., Stumpfl E.F. Petrogenesis of the ophiolitic giant chromite deposits of Kempirsai, Kazakhstan: a study of solid and fluid inclusions in chromite. J. Petrol. 1997. Vol. 38. P. 1419–1458.
- Murzin V.V., Malich K.N., Badanina I.Yu., Varlamov D.A., Chashchukhin I.S. Mineral associations of chromitites of the Alapaevsky dunite-harzburgite massif (Middle Urals). Lithosphere. 2023. Vol. 23. N 5. P. 740–765 (in Russian).
- Murzin V.V., Sustavov S.G. New data on minerals of the laurite-erlichmanite series and on their arsenic varieties. Doklady Earth Sci. 2000. Vol. 370. N 3. P. 160–162.
- Mysen B.O., Kushiro I. Compositional variations of coexisting phases with degree of melting of peridotite in the upper mantle. Amer. Miner. 1977. Vol. 62. N 9/10. P. 843–856.
- Nikolskaya N.E., Kazennova A.D., Nikolaev V.I. Typomorphism of ore-forming chromospinelide of chrome ore deposits. Moscow: VIMS, 2021. 238 p. (in Russian).
- Pašava J., Knesl I., Vymazalova A., Vavrin I., Gurskaya L.I., Kolantsev L.R. Geochemistry and mineralogy of platinum-group elements (PGE) in chromites from Centralnoye I, Polar Urals, Russia. Geosci. Frontiers. 2011. Vol. 2. N 1. P. 81–85
- Pavlov N.V. Chemical composition of chromospinelides in connection with the petrographic composition of rocks of ultrabasic intrusives. Proc. Geol. Inst. USSR Acad. Sci. 1949. Vol. 103. P. 1–91 (in Russian).
- Perevozchikov B.V. Peculiarities of studying the chromite-bearing of alpine-type hyperbasites. Moscow: Geoinformmark, 1998. 47 p. (in Russian).
- Perevozchikov B.V., Bulykin L.D., Popov I.I., Orfanitsky V.L., Andreev M.I., Snachev V.I., Danilenko S.A., Cherkasov V.L., Chentsov A.M., Zharikova L.N., Klochko A.A. Register of chromite occurrences in alpine-type ultrabasites of the Urals. Perm: KamNIIKIGS, 2000. 474 p. (in Russian).
- Savelyeva G.N. Gabbro-ultramafic complexes of ophiolites of the Urals and their analogues in modern oceanic crust. Moscow: Nauka, 1987. 230 p. (in Russian).
- Shinkarev N.F., Ivanikov V.V. Physicochemical petrology of igneous rocks. Leningrad: Nedra, 1983. 271 p. (in Russian).
- Shiryaev P.B. Oxythermobarometry, material composition and genetic characteristics of chromium ores of the Rai-Iz and Voykar-Syninsky massifs (the Polar Urals). Ph. D. thesis syn. Moscow, 2021. 24 p. (in Russian).
- Shmelev V.R. Mantle ultrabasites of ophiolite complexes in the Polar Urals: petrogenesis and geodynamic environments. Petrology. 2011. Vol. 19. N 6. P. 618–640.
- Smirnova T.A. Telluric iron in ultrabasic rocks of the Kempirsai pluton. Zapiski RMO (Proc. Russian Miner. Soc.). 1970. Part 99. N 6. P. 745–748 (in Russian).
- Stoсkman H.W., Hlava P.F. Platinum-group minerals in alpine chromitites from southwestern Oregon. Econ. Geol. 1984. Vol. 79. P. 491–508.
- Structure, evolution and minerageny of the hyperbasic massif Rai-Iz / Ed. By V.N. Puchkov, D.S. Steinberg. Sverdlovsk: Ural Branch of the USSR Acad. Sci, 1990. 226 p. (in Russian).
- Talhammer T.V. Association of minerals of platinum group in massive chromite ores of Kempirsai ophiolite complex (Southern Urals) as manifestation of mantle metasomatism. Zapiski RMO (Proc. Russian Miner. Soc.). 1996. Vol. 125. N 1. P. 25–36 (in Russian).
- Tolstykh N.D. Platinum mineralization of the Konder and Inagli massifs. Geosphere research. 2018. N 1. P. 17–32 (in Russian).
- Vakhrusheva N.V., Shiryaev P.B., Stepanov A.E., Bogdanova A.R. Petrology and chromite-bearing of the Rai-Iz ultramafic massif (Polar Urals). Ekaterinburg: IGG Ural Branch RAS, 2017. 265 p. (in Russian).
- Yang J., Meng F., Xu X., Robinson P.T., Dilek Y., Makeyev A.B., Wirth R., Wiedenbeck M., Cliff J. Diamonds, native elements and metal alloys from chromitites of the Ray-Iz ophiolite of the Polar Urals. Gondwana Research. 2015. Vol. 27. N 2. Р. 459–485.
- Yurichev A.N. Ore chromospinelides of the Syum-Keu and Kharcheruz massifs: chemistry and genetic nature, Polar Urals. Ores and Metals. 2017. N 2. P. 51–59 (in Russian).
- Yurichev A.N. Platinum group minerals in chromitites of the Agardag ultramafic massif (Tuva Republic): new data. Zapiski RMO (Proc. Russian Miner. Soc.). 2022. Part 151. N 4. P. 56–69 (in Russian).
- Yurichev A.N., Chernyshov A.I. Platinoides of the Rh–Zn–Pt system from the chromitite ultramafic massif (the South Urals, Kazakhstan). Petrology of igneous and metamorphic complexes: Materials of the X All-Russian conference with international participation. Vol. 10. Tomsk: Publishing house of Tomsk CNTI, 2018. P. 445–446 (in Russian).
- Yurichev A.N., Chernyshov A.I., Korbovyak E.V. Platinum group minerals from chromitites of Kempirsai ultramafic massif (the South Urals, Kazakhstan): new data. Zapiski RMO (Proc. Russian Miner. Soc.). 2019. Vol. 148. N 2. P. 76–86 (in Russian).
- Yurichev A.N., Chernyshov A.I., Korbovyak E.V. Platinum-bearing of chromitites in the Kharcheruz ultramafic massif (the Polar Urals): new data. Zapiski RMO (Proc. Russian Miner. Soc.). 2020. Vol. 149. N 3. P. 38–53 (in Russian).
- Yurichev A.N., Chernyshov A.I., Korbovyak E.V. New data on the platinum-bearing potential of chromitites in the Kharcheruz ultramafic massif, Polar Urals. Geol. Ore Deposits. 2021. Vol. 63. N 7. Р. 706–716.
- Zaccarini F., Garuti G., Pushkarev E., Thalhammer O. Origin of platinum group minerals (PGM) inclusions in chromite deposits of the Urals. Minerals. 2018. Vol. 8. N 9. Paper 379.
- Zaccarini F., Pushkarev E.V., Garuti G. Platinum group element mineralogy and geochemistry of chromitite of the Kluchevskoy ophiolite complex, central Urals (Russia). Ore Geol. Rev. 2008. Vol. 33. P. 20–30.
- Zaccarini F., Pushkarev E., Garuti G., Kazakov I. Platinum-Group Minerals and Other Accessory Phases in Chromite Deposits of the Alapaevsk Ophiolite, Central Urals, Russia. Minerals. 2016. Vol. 6. Paper 108.
- Zhou M-F., Robinson P., Malpas J., Li Z. Podiform chromites in the Luobusa Ophiolite (Southern Tibet): implications for melt-rock interaction and chromite segregation in the upper mantle. J. Petrol. 1996. Vol. 37. P. 3–21.
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