Минералогия, геохимия и Sm-Nd систематика пород и руд скарново-магнетитового месторождения Канакай (Южный Урал)
Ключевые слова:
скарново-магнетитовые руды, минералогия, геохимия, изотопная Sm-Nd систематика
Аннотация
Введение: Скарново-магнетитовые месторождения имеют большое промышленное значение, однако источники оруденения дискуссионны. В последние годы эта проблема всѐ чаще решается при помощи геохимии главных и акцессорных минералов, а также изотопной геохимии, включая стабильные и радиогенные изотопы. Методика: Минеральный состав пород и руд изучался при помощи сканирующей электронной микроскопии (Tescan Vega Compact). Химический состав пород и руд определѐн при помощи рентгенофлуоресцентного спектрометра X-Calibur. Изучение Sm-Nd изотопной системы произведено на семиканальном масс-спектрометре Finnigan-MAT 262 (RPQ). Результаты и обсуждение: Впервые проведены детальные исследования минерального состава и геохимических особенностей пород и руд Канакайского скарново-магнетитового месторождения (Южный Урал). Геологические и минералого-геохимические данные согласуются с постскарновым гидротермально-метасоматическим происхождением магнетитовых руд, заместивших брекчированные мраморизованные известняки на контакте с габброидами утлыкташского комплекса. Для оценки условий рудогенеза детально изучены дорудные (гранат, клинопироксен) и пострудные (хлорит, пренит) минералы метасоматитов. Sm-Nd изотопные данные (εNd(T) = ˗3.4...+7.2) для пород и руд свидетельствуют о гетерогенности источника оруденения и вероятной интенсивной флюидной переработке руд. Заключение: Скарново-магнетитовые руды Канакайского месторождения отлагались в диапазоне температур 219–492 °C, а источником Fe могли быть как габброиды интрузии, так и вмещающие породы.
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Литература
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19. Ravna K. The garnet–clinopyroxene Fe2+–Mg geothermometer: an updated calibration. Metamorphic geology, 2000, vol. 18 (2), pp. 211–219. DOI
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21. Rakhimov I. R. Geologiya, petrologiya i rudonosnost pozdnedevonsko-karbonovogo intruzivnogo magmatizma Zapadno-Magnitogorskoy zony Yuzhnogo Urala. Diss. kand. geol.- min. nauk [Geology, petrology and ore-mineralization of Late Devonian–Carbon intrusive magmatism of the Western Magniitogorsk zone of the Southern Urals. Cand. geol. and min. sci. diss.]. Ufa publ., 2017, 181 p. (In Russ.)
22. De Paolo D.J., Wasserburg G.J. Nd isotopic variations and petrogenetic models. Geophysic Research Letters, 1976, vol. 3, pp. 249–252.
23. Goldstein S.J., Jacobsen S.B. Nd and Sr isotopic systematics of rivers water suspended material: implications for crustal evolution. Earth Planet. Sci. Lett., 1988, vol. 87, pp. 249–265.
24. Brock K.J. Genesis of garnet hill skarn, Calaveras County, California. Geological Society of America Bulletin, 1972, vol. 83, no. 11, pp. 391–404.
25. Skarnovo-magnetitovye mestorozhdeniya Urala. Geologiya i metallogeniya [Skarn-magnetite deposits of Urals. Geology and metallogeny]. Chief ed. G.B. Fershtater and Y.P. Baklaev. Sverdlovsk, URC AS USSR publ., 1978, 144 p. (In Russ.)
26. Lapin S.S. Litologicheskiy sostav zameshchaemykh gornykh porod magnetitovymi rudami i raspredelenie elementovprimesey v magnetite. V kn. Problemy differentsiatsii veshchestva v magmaticheskikh rudoobrazuyushchikh protsessakh [Lithological composition of rocks replaced by magnetite ores and distribution of impurity elements in magnetite. In book: Problems of matter differentiation in igneous ore-forming processes]. Novosibirsk, Nauka publ., 1977, pp. 140–154. (In Russ.)
27. Kalugin I.A. Petrokhimicheskie osobennosti skarnovomagnetitovogo orudeneniya v silikatnykh i karbonatnykh tolshchakh. V kn. Problemy differentsiatsii veshchestva v magmaticheskikh rudoobrazuyushchikh protsessakh [Petrochemical features of skarn-magnetite mineralization in silicate and carbonate strata. In book: Problems of matter differentiation in igneous ore-forming processes]. Novosibirsk, Nauka publ., 1977, pp. 161–168. (In Russ.)
28. Rosing M.T. The theoretical effect of metasomatism on Sm-Nd isotopic system. Geochimica et Cosmochimica Acta, 1990, vol. 54, pp. 1337–1341.
29. Li X.-C., Harlov D.E., Zhou M.-F., Hu H. Experimental investigation into the disturbance of the Sm-Nd isotopic system during metasomatic alteration of apatite. Geochimica et Cosmochimica Acta, 2022, vol. 330, no. 1, pp. 191–208. DOI
30. Mizens G.A., Kuznetsova E.V., Ronkin Y.L., Lepyokhina O.P., Popova O.Y. Rare earth elements in Devonian sedimentary and volcanic-sedimentary deposits of the Southern Urals. Doklady Akademii Nauk−Doklady of Russian Academy of Science, 2005, vol. 403, no. 3, pp. 382–387.
31. Zhang Z., Zuo R., Cheng Q. Formation process, Makeng Fe deposit. Resource Geology, 2015, vol. 65, pp. 266–284. DOI
32. Li X.-C., Zhou M.-Z., Yang Y.-H., Zhao X.-F., Gao J.-F. Disturbance of the Sm-Nd isotopic system by metasomatic alteration: A case study of fluorapatite from the Sin Quyen CuLREE-Au deposit, Vietnam. American Mineralogist, 2018, vol. 103, no. 9, pp. 1487–1496. DOI
2. Skarnovye mestorozhdeniya [Skarn deposits]. Chief ed. D.S. Korzhinskiy. Moscow, Nauka publ., 1985, 248 p. (In Russ.)
3. Epanchintsev S. G., Popov V. A. Mineraly miarol skarnovomagnetitovogo mestorozhdeniya Malyi Kuybas [Miarol minerals of the skarn-magnetite deposit Malyi Kuybas]. Mineralogiya−Mineralogy, 2015, no. 1, pp. 49–58. (In Russ.)
4. Zharikov V. A. Skarnovye mestorozhdeniya. V kn. Genezis endogennykh rudnykh mestorozhdeniy [Skarn deposits. In book: Genesis of endogenous ore deposits]. Мoscow, Nedra publ., 1968, pp. 220–302. (In Russ.)
5. Vakhrushev V. A. Mineralogiya, geokhimiya i geneticheskie gruppy kontaktovo-metasomaticheskikh zlelezorudnykh mestorozhdeniy Altae-Sayanskoy oblasti [Mineralogy, geochemistry, and genetic groups of contact-metasomatic iron deposits of AltaySayany region]. Moscow, Nauka publ., 1965, 292 p. (In Russ.)
6. Pavlov A. L. Problemy formirovaniya skarnov pri vozdeystvii na nikh vosstanovlennykh flyuidov. V. kn. Skarny i rudy [Problems of skarn formation under the action of reduced fluids on them. In book: Skarns and ores]. Novosibirsk publ., 1983, pp. 89–95. (In Russ.)
7. Sinyakov V. I. Geneticheskie tipy skarnovykh rudoobrazuyushchikh system [Genetic types of skarn ore-forming systems]. Novosibirsk, Nauka publ., 1990, 71 p. (In Russ.)
8. Baker T., Van Achterberg E., Ryan C.G., Lang J.R. Composition and evolution of ore fluids in a magmatic-hydrothermal skarn deposit. Geology, 2004, vol. 32, no. 2, pp. 117–120. DOI
9. Zhu B., Zhang H.-F., Zhao X.-M., He Y.-S. Iron isotope fractionation during skarn-type alteration: Implications for metal source in the Han-Xing iron skarn deposit. Ore Geology Reviews, 2016, vol. 74, pp. 139–150. DOI
10. Xu G., Lin X. Geology and geochemistry of the Changlongshan skarn iron deposit, Anhui Province, China. Ore Geology Reviews, 2000, vol. 16 (1–2), pp. 91–106.
11. Sepidbar F., Mirnejad H., Li J.-W., Ma C. Mineral and sta40 39ble isotope compositions, phase equilibria and Ar– Ar geochronology from the iron skarn deposit in Sangan, northeastern Iran. Ore Geology Reviews, 2017, vol. 91, pp. 660–681. DOI
12. Zhao S., Brzozowski M.J., Mueller T., Wang L., Li W. Skarn classification and element mobility in the Yeshan Iron Deposit, Eastern China: Insight from lithogeochemistry. Ore Geology Reviews, 2022, vol. 145, 104909. DOI
13. Fershtater G.B. Paleozoyskiy intruzivnyi magmatizm Srednego i Yuzhnogo Urala [Paleozoic intrusive magmatism of Middle and Southern Urals]. Yekaterinburg, UrB RAS publ., 2013, 368 p. (In Russ.)
14. Krylatov V.A., Ovcharov A.N., Galiullin I.B. Otchyot o rezul’tatakh rabot po geologicheskomu izucheniyu nedr po ob’ektu: “Otsenochnye raboty na Kanakayskom proyavlenii zheleznykh rud v Uchalinskom rayone Respubliki Bashkortostan v 2016–2017 gg., s TEO vremennykh razvedochnykh konditsiyoperativnym podschyotom zapasov rud” [Report on the results of work on the geological study of the subsoil at the facility: "Evaluation work at the Kanakai iron ore occurrence in the Uchalinsky district of the Republic of Bashkortostan in 2016–2017, with a feasibility study of temporary exploration conditions and an operational calculation of ore reserves"]. Ufa, Bashkortostan branch of TFGI, 2017, 124 p. (In Russ.)
15. Salikhov D.N., Kovalyov S.G., Larionov N.N., Belikova G.I. Poleznye iskopaemye Respubliki Bashkortostan (zheleznye rudy) [Mineral resources of Republic of Bashkortostan (iron ores)]. Ufa, Gilem publ., 2008, 148 p. (In Russ.)
16. Prokin V. A. Zakonomernosti razmeshcheniya kolchedannykh mestorozhdeniy na Yuzhnom Urale [Patterns of placement of pyrite deposits in the South Urals]. Moscow, Nedra publ., 1977, 176 p. (In Russ.)
17. Tanaka T., Togashi S., Kamioka H., Amakawa H., Kagami H., Hamamoto T., Yuhara M., Orihashi Y., Yoneda S., Shimizu H., Kunimaru T., Takahashi K., Yanagi T., Nakano T., Fujimaki H., Shinjo R., Asahara Y., Tanimizu M., Dragusanu C. J. Ndi-1: a neodymium isotopic reference in consistency with LaJolla neodymium. Chemical Geology, 2000, vol. 168, pp. 279–281.
18. Bouvier A.,Vervoort J.D.,Patchett P.J. The Lu–Hf and Sm–Nd isotopic composition of CHUR: Constraints from unequilibrated chondrites and implications for the bulk composition of terrestrial planets. Earth Planet. Sci. Lett., 2008, vol. 273, no. 1–2, pp. 48–57. DOI
19. Ravna K. The garnet–clinopyroxene Fe2+–Mg geothermometer: an updated calibration. Metamorphic geology, 2000, vol. 18 (2), pp. 211–219. DOI
20. Lanari P., Wagner T., Vidal O. A thermodynamic model for di-trioctahedral chlorite from experimental and natural data in the system MgO–FeO–Al2O3–SiO2–H2O: applications to P–T sections and geothermometry. Contributions to Mineralogy and Petrology, 2014, vol. 167, pp. 268–287. DOI
21. Rakhimov I. R. Geologiya, petrologiya i rudonosnost pozdnedevonsko-karbonovogo intruzivnogo magmatizma Zapadno-Magnitogorskoy zony Yuzhnogo Urala. Diss. kand. geol.- min. nauk [Geology, petrology and ore-mineralization of Late Devonian–Carbon intrusive magmatism of the Western Magniitogorsk zone of the Southern Urals. Cand. geol. and min. sci. diss.]. Ufa publ., 2017, 181 p. (In Russ.)
22. De Paolo D.J., Wasserburg G.J. Nd isotopic variations and petrogenetic models. Geophysic Research Letters, 1976, vol. 3, pp. 249–252.
23. Goldstein S.J., Jacobsen S.B. Nd and Sr isotopic systematics of rivers water suspended material: implications for crustal evolution. Earth Planet. Sci. Lett., 1988, vol. 87, pp. 249–265.
24. Brock K.J. Genesis of garnet hill skarn, Calaveras County, California. Geological Society of America Bulletin, 1972, vol. 83, no. 11, pp. 391–404.
25. Skarnovo-magnetitovye mestorozhdeniya Urala. Geologiya i metallogeniya [Skarn-magnetite deposits of Urals. Geology and metallogeny]. Chief ed. G.B. Fershtater and Y.P. Baklaev. Sverdlovsk, URC AS USSR publ., 1978, 144 p. (In Russ.)
26. Lapin S.S. Litologicheskiy sostav zameshchaemykh gornykh porod magnetitovymi rudami i raspredelenie elementovprimesey v magnetite. V kn. Problemy differentsiatsii veshchestva v magmaticheskikh rudoobrazuyushchikh protsessakh [Lithological composition of rocks replaced by magnetite ores and distribution of impurity elements in magnetite. In book: Problems of matter differentiation in igneous ore-forming processes]. Novosibirsk, Nauka publ., 1977, pp. 140–154. (In Russ.)
27. Kalugin I.A. Petrokhimicheskie osobennosti skarnovomagnetitovogo orudeneniya v silikatnykh i karbonatnykh tolshchakh. V kn. Problemy differentsiatsii veshchestva v magmaticheskikh rudoobrazuyushchikh protsessakh [Petrochemical features of skarn-magnetite mineralization in silicate and carbonate strata. In book: Problems of matter differentiation in igneous ore-forming processes]. Novosibirsk, Nauka publ., 1977, pp. 161–168. (In Russ.)
28. Rosing M.T. The theoretical effect of metasomatism on Sm-Nd isotopic system. Geochimica et Cosmochimica Acta, 1990, vol. 54, pp. 1337–1341.
29. Li X.-C., Harlov D.E., Zhou M.-F., Hu H. Experimental investigation into the disturbance of the Sm-Nd isotopic system during metasomatic alteration of apatite. Geochimica et Cosmochimica Acta, 2022, vol. 330, no. 1, pp. 191–208. DOI
30. Mizens G.A., Kuznetsova E.V., Ronkin Y.L., Lepyokhina O.P., Popova O.Y. Rare earth elements in Devonian sedimentary and volcanic-sedimentary deposits of the Southern Urals. Doklady Akademii Nauk−Doklady of Russian Academy of Science, 2005, vol. 403, no. 3, pp. 382–387.
31. Zhang Z., Zuo R., Cheng Q. Formation process, Makeng Fe deposit. Resource Geology, 2015, vol. 65, pp. 266–284. DOI
32. Li X.-C., Zhou M.-Z., Yang Y.-H., Zhao X.-F., Gao J.-F. Disturbance of the Sm-Nd isotopic system by metasomatic alteration: A case study of fluorapatite from the Sin Quyen CuLREE-Au deposit, Vietnam. American Mineralogist, 2018, vol. 103, no. 9, pp. 1487–1496. DOI
Опубликован
2023-03-23
Как цитировать
Рахимов, И. Р., Михеев, Е. И., Вишневский, А. В., & Кунаккузин, Е. Л. (2023). Минералогия, геохимия и Sm-Nd систематика пород и руд скарново-магнетитового месторождения Канакай (Южный Урал). Вестник ВГУ. Серия: Геология, (1), 49-64. https://doi.org/10.17308/geology/1609-0691/2023/1/49-64
Выпуск
Раздел
Петрология, вулканология, геохимия
