Детритовые клинопироксен и амфибол из хромитоносных песчаников казанского яруса в Южном Предуралье как индикаторы источника хромшпинелидов
Ключевые слова:
хромитоносные песчаники, детритовые клинопироксен и амфибол, включения, офиолитовый источник
Аннотация
Bведение: В Южном Предуралье обнаружены хромитовые палеороссыпи казанского возраста. Проблема генезиса этих россыпей дискуссионна, поскольку они значительно удалены от хромитоносных комплексов складчатого Урала. В качестве источников детритовых хромитов предполагается не только офиолитовый, но и другие (неофиолитовые) источники. В хромитоносных песчаниках обнаружены детритовые силикатные минералы, изучение которых даѐт возможность уточнить источники сноса. Методика: Образцы пород изучались на оптическом (Carl Zeiss Axioskop 40) и электронном (Tescan Vega Compact) микроскопах. Химический состав минералов определѐн в режиме ЭДС на сканирующем электронном микроскопе Tescan Vega Compact. Результаты и обсуждение: Выполнено морфологическое и геохимическое изучение зѐрен детритовых клинопироксена и амфибола в хромитоносных песчаниках. Также исследованы включения клинопироксена и амфибола в детритовых хромшпинелидах. Все зѐрна клинопироксена имеют выдержанный состав и отвечают низкотитанистому диопсиду. Большинство зѐрен детритового амфибола соответствуют высокомагнезиальным кальциевым амфиболам магматогенного происхождения. Составы изученных детритовых клинопироксена и амфибола на классификационных и дискриминационных диаграммах полностью или почти полностью перекрываются с составами этих минералов из офиолитов Южного Урала. Заключение: Сделан вывод о том, что при формировании хромитовых россыпей Южного Предуралья офиолитовый источник мог быть единственным в области сноса. В привлечении дополнительных источников хромитов нет необходимости.
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Литература
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15. Snachev V.I., Saveliev, D.E., Rykus M.V. Petrogeokhimicheskie osobennosti porod i rud gabbro-giperbazitovykh massivov Kraka [Petrogeochemical features of rocks and ores of Kraka gabbro-hyperbasite massifs]. Ufa, 2001. 212 p. (in Russ.)
16. Saveliev, D.E., Puchkov, V.N., Bazhin, E.A., Snachev V.I., Romanovskaya M.A. Novye dannye po geologii i geokhimii Talovskogo gabbro-giperbazitovogo massiva (Yuzhnyi Ural) [New data on geology and geochemistry of the Talovskii gabbro-ultrabasic massif (Southern Urals)]. Moscow Univ. Geol. Bull., 2010, vol. 65, pp. 203–208.
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18. Leake B.E., Wooley A.R., Arps C.E.S., Birch W.D., Gilbert M.C., Grice J.D., Hawthorne F.C., Kato A., Kisch H.J., Krivovichev V.G., Linthout K., Laird J., Mandarino J., Maresch,W.V., Nickel E.H., Rock N.M.S., Schumacher J.C., Stephenson N.C.N., Ungaretti L., Whit-taker E.J.W., Youzhi G. Nomenclature of amphiboles. Report of the Subcommittee on amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names. Mineral.Mag, 1997, vol. 61, pp. 295–321.
19. Simonov V.A., Zolotukhin V.V., Kovyazin S.V., Al'mukhamedov A.I., Medvedev A.Ya. Petrogenesis of basaltic series of the Ontong Java oceanic plateau and the Nauru basin, Pacific Ocean. Petrology, 2004, vol. 12, no. 2, pp. 163–175. IV VI20. Seyler M., Bonatti E. Na, Al and Al in clinopyroxenes of subcontinental and suboceanic ridge peridotites: A clue to different melting processes in the mantle? Earth and Planetary Science Letters, 1994, vol. 122, pp. 281–289.
21. Beccaluva L., Macciotta G., Piccardo G.B., Zeda O. Clinopyroxene composition of ophiolite basalts as petrogenetic indicator. Chemical Geology, 1989, vol. 77, pp. 165–182.
22. Le Bas M.J. The role of aluminum in igneous clinopyroxenes with relation to their parentage. Am. J. Sci., 1962, vol. 260, pp. 267–288.
23. Cherniak D.J., Dimanov A. Diffusion in Pyroxene, Mica and Amphibole. Reviews in Mineralogy and Geochemistry, 2010, vol. 72, pp. 641–690.
24. Giret A., Bonin B., Léger J.M. Amphibole compositional trend in oversaturated and undersaturated alkaline plutonic ring complexes. Canadian Mineralogist, 1980, vol. 18, pp. 481–95.
25. Fleet M., Barnett R.L. Aliv/Alvi partitioning in calciferous amphiboles from the mine, Sudbury. Ontario. Canadian Mineralogist, 1978, vol. 16, pp. 527–32.
2. Morton A.C. Heavy minerals in provenance studies. In: Zuffa G.G. (Ed.) Provenance of arenites. Reidel, Dordrecht, 1985, pp. 249–277.
3. Sevastjanova I., Hall R., Alderton D. A detrital heavy mineral viewpoint on sediment provenance and tropical weathering in SE Asia. Sedimentary Geology, 2012, vol. 280(SI), pp. 179–194.
4. Shilo N.A. Uchenie o rossupyakh [Teaching on Placer Deposits]. Vladivostok: Dalnauka, 2002. 576 p. (In Russ.)
5. Lenaz D. Detrital pyroxenes in the Eocene flysch of the Istrian basin (Slovenia, Croatia). Geologica Acta, 2008, vol. 6, pp. 259–266.
6. Al-Juboury A.I., McCann T., Ghazal M.M. Provenance of Miocene sandstones in northern Iraq (from the petrography, bulkrock geochemistry, and mineral chemistry of detritus). Russian Geology and Geophysics, 2009, vol. 50, no 6. pp, 517–534.
7. Caracciolo L., Orlando A., Marchev P., Critelli S., Manetti P., Raycheva R., Riley D. Provenance of Tertiary volcanoclastic sediment in NW Thrace (Bulgaria): Evidence from detrital amphibole and pyroxene geochemistry. Sedimentary Geology, 2016, vol. 336, no. 1, pp. 120–137.
8. Rakhimov I.R., Saveliev D.E., Rassomakhin M.A., Samigullin A.A. Chromspinels from Kazanian-stage placers in the Southern Pre-Urals, Bashkiria, Russia: morphological and chemical features and constraints to source unraveling. Minerals, 2022, vol. 12: 849.
9. Rakhimov I.R., Pushkarev E.V., Gottman I.A. Chromite Paleoplacer in the Permian Sediments at the East Edge of the East European Platform: Composition and Potential Sources. Minerals, 2021, vol. 11 (7): 691.
10. Knyazev Y.G., Knyazeva O.Y., SnachevV.I., Zhdanov A.V., Karimov T.R., Aydarov E.M., Masagutov R.K., Arslanova E.R. Gosudarstvennaya geologicheskaya karta rossiyskoy Federatsii masshtaba 1:1000000 (tret’e pokolenie). Ural’skaya seriya. List N-40-Ufa. Ob’yasnitel’naya zapiska [State Geological Map of the Russian Federation, 3rd ed.; Scale 1:1000000; Ural series. N-40-Ufa; Explanatory Letter]. Saint Petersburg, FGUP «VSEGEI» publ., 2013. 512 p. (In Russ.)
11. Maslov A.V., Mizens G.A., Badida L.V., Krupenin M.T., Vovna G.M., Kiselev V.I., Ronkin Y.L. Litogeokhimiya terrigennykh assotsiatsiy yuzhnykh vpadin Predural’skogo progiba [Lithogeochemistry of Terrigenous Associations of the Southern Depressions of the Ural Foredeep]. Yekaterinburg, IGG UB RAS, 2015. 308 p. (In Russ.)
12. Sinitsyn I.I., Sinitsyna G.I. Ob’yasnitel'naya zapiska k geologicheskoy karte SSSR masshtaba 1:200000, list No 40-XXVI [Explanatory Letter to geological map of USSR scale 1:200000, sheet No 40-XXVI]. M.: Ministerstvo geologii, BTGU, 1965. V. 1. 170 p.
13. Morimoto N. Nomenclature of Pyroxenes. Mineralogy and Petrology. 1988. vol. 39, pp. 55–76.
14. Saveliev D.E. Chromitites of the Kraka ophiolite (South Urals, Russia): geological, mineralogical and structural features. Miner. Deposita, 2021, vol. 56, pp. 1111–1132.
15. Snachev V.I., Saveliev, D.E., Rykus M.V. Petrogeokhimicheskie osobennosti porod i rud gabbro-giperbazitovykh massivov Kraka [Petrogeochemical features of rocks and ores of Kraka gabbro-hyperbasite massifs]. Ufa, 2001. 212 p. (in Russ.)
16. Saveliev, D.E., Puchkov, V.N., Bazhin, E.A., Snachev V.I., Romanovskaya M.A. Novye dannye po geologii i geokhimii Talovskogo gabbro-giperbazitovogo massiva (Yuzhnyi Ural) [New data on geology and geochemistry of the Talovskii gabbro-ultrabasic massif (Southern Urals)]. Moscow Univ. Geol. Bull., 2010, vol. 65, pp. 203–208.
17. Balykin P.A., Konnikov E.G., Krivenko A.P., Lesnov F.P., Lepetyukha V.V., Litvinova T.I., Pushkarev E.V., Fershtater G.B. Petrologiya postgartsburgitovykh intruzivov kempirsaysko-khabarninskoy ofiolitivoy assotsiatsii (Yuzhnyi Ural) [Petrology of postharzburgite intrusives of Kempirsai-Khabarninsk ophiolite associations (Southern Urals)] Sverdlovsk: Ural Branch USSR Acad. Sci., 1991. 160 p. (in Russ.)
18. Leake B.E., Wooley A.R., Arps C.E.S., Birch W.D., Gilbert M.C., Grice J.D., Hawthorne F.C., Kato A., Kisch H.J., Krivovichev V.G., Linthout K., Laird J., Mandarino J., Maresch,W.V., Nickel E.H., Rock N.M.S., Schumacher J.C., Stephenson N.C.N., Ungaretti L., Whit-taker E.J.W., Youzhi G. Nomenclature of amphiboles. Report of the Subcommittee on amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names. Mineral.Mag, 1997, vol. 61, pp. 295–321.
19. Simonov V.A., Zolotukhin V.V., Kovyazin S.V., Al'mukhamedov A.I., Medvedev A.Ya. Petrogenesis of basaltic series of the Ontong Java oceanic plateau and the Nauru basin, Pacific Ocean. Petrology, 2004, vol. 12, no. 2, pp. 163–175. IV VI20. Seyler M., Bonatti E. Na, Al and Al in clinopyroxenes of subcontinental and suboceanic ridge peridotites: A clue to different melting processes in the mantle? Earth and Planetary Science Letters, 1994, vol. 122, pp. 281–289.
21. Beccaluva L., Macciotta G., Piccardo G.B., Zeda O. Clinopyroxene composition of ophiolite basalts as petrogenetic indicator. Chemical Geology, 1989, vol. 77, pp. 165–182.
22. Le Bas M.J. The role of aluminum in igneous clinopyroxenes with relation to their parentage. Am. J. Sci., 1962, vol. 260, pp. 267–288.
23. Cherniak D.J., Dimanov A. Diffusion in Pyroxene, Mica and Amphibole. Reviews in Mineralogy and Geochemistry, 2010, vol. 72, pp. 641–690.
24. Giret A., Bonin B., Léger J.M. Amphibole compositional trend in oversaturated and undersaturated alkaline plutonic ring complexes. Canadian Mineralogist, 1980, vol. 18, pp. 481–95.
25. Fleet M., Barnett R.L. Aliv/Alvi partitioning in calciferous amphiboles from the mine, Sudbury. Ontario. Canadian Mineralogist, 1978, vol. 16, pp. 527–32.
Опубликован
2022-09-26
Как цитировать
Рахимов, И. Р. (2022). Детритовые клинопироксен и амфибол из хромитоносных песчаников казанского яруса в Южном Предуралье как индикаторы источника хромшпинелидов. Вестник ВГУ. Серия: Геология, (3), 41-51. https://doi.org/10.17308/geology/1609-0691/2022/3/41-51
Выпуск
Раздел
Петрология, вулканология, геохимия
