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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geores</journal-id><journal-title-group><journal-title xml:lang="ru">Георесурсы</journal-title><trans-title-group xml:lang="en"><trans-title>Georesources</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-5043</issn><issn pub-type="epub">1608-5078</issn><publisher><publisher-name>Georesursy LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18599/grs.2024.4.9</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-432</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ГЕОЛОГИЯ, ПОИСК И РАЗВЕДКА МЕСТОРОЖДЕНИЙ ТВЕРДЫХ ПОЛЕЗНЫХ ИСКОПАЕМЫХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GEOLOGY, PROSPECTING AND EXPLORATION OF SOLID MINERAL DEPOSITS</subject></subj-group></article-categories><title-group><article-title>Минералого-геохимические особенности ультрамафитов восточной части массива Южный Крака (Южный Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Composition and Mineralogical Features of Ultramafic Rocks of Eastern Part of Southern Kraka Massif (South Urals)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савельев</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Saveliev</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор геол.-минерал. наук, главный научный сотрудник.</p><p>450077, Уфа, ул. К.Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Dr. Sci. (Geology and Mineralogy), Chief Researcher.</p><p>16/2 K.Marks st., Ufa, 450077</p></bio><email xlink:type="simple">savl71@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Биембетов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Biembetov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Директор.</p><p>453580, республика Башкортостан, Бурзянский район, пос. Саргая</p></bio><bio xml:lang="en"><p>Director.</p><p>Burzyansky district,Republic of Bashkortostan, 453580</p></bio><email xlink:type="simple">bgpz-karat@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шабутдинов</surname><given-names>Т. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Shabutdinov</surname><given-names>T. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Инженер-исследователь.</p><p>450077, Уфа, ул. К.Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Research Engineer.</p><p>16/2 K.Marks st., Ufa, 450077</p></bio><email xlink:type="simple">timurgeolog11@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самигуллин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Samigullin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Младший научный сотрудник.</p><p>450077, Уфа, ул. К. Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Junior Researcher.</p><p>16/2 K. Marks st., Ufa, 450077</p></bio><email xlink:type="simple">samigullinaidar85@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гатауллин</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gataullin</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Младший научный сотрудник.</p><p>450077, Уфа, ул. К.Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Junior Researcher.</p><p>16/2 K.Marks st., Ufa, 450077</p></bio><email xlink:type="simple">rusgatln97@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт геологии УФИЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Geology of the Ufa Federal Research Centre of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Башкирский государственный природный заповедник</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State Nature Reserve</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2024</year></pub-date><volume>26</volume><issue>4</issue><fpage>248</fpage><lpage>259</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савельев Д.Е., Биембетов А.И., Шабутдинов Т.Д., Самигуллин А.А., Гатауллин Р.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Савельев Д.Е., Биембетов А.И., Шабутдинов Т.Д., Самигуллин А.А., Гатауллин Р.А.</copyright-holder><copyright-holder xml:lang="en">Saveliev D.E., Biembetov A.I., Shabutdinov T.D., Samigullin A.A., Gataullin R.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.geors.ru/jour/article/view/432">https://www.geors.ru/jour/article/view/432</self-uri><abstract><p>В работе приведены новые данные о строении и составе ультрамафитов восточной части массива Южный Крака (Южный Урал). Показано, что изученная территория сложена преимущественно шпинелевыми перидотитами, среди которых основная роль принадлежит лерцолитам с низким содержанием клинопироксена (2–5%) и гарцбургитам с подчиненными телами дунитов. Ведущая роль в строении пород принадлежит высокомагнезиальному оливину (Fo87–94), второстепенную роль играют энстатит и диопсид, редкими минералами являются амфиболы и плагиоклаз. Типичный акцессорный минерал ультрамафитов – хромшпинелид, состав которого изменяется от высокоглиноземистого в лерцолитах (Cr# = 0,16–0,3), до умеренно-глиноземистого в гарцбургитах (Cr# = 0,3–0,55) и высокохромистого в дунитах (Cr# = 0,6–0,85). Из редких акцессорных минералов в породах выявлены самородная медь, пентландит, аваруит и минералы элементов платиновой группы (лаурит, ирарсит, сплавы Os–Ir–Ru состава). согласно полученным геологическим и петрологическим данным, ультрамафиты восточной части массива Южный Крака завершили свою высокотемпературную эволюцию на уровне фации плагиоклазовых перидотитов, отчасти в переходной зоне от шпинелевой к плагиоклазовой фации. Фугитивность кислорода, рассчитанная по составам сосуществующих зерен оливина и хромшпинелида, позволяет говорить о более восстановительных условиях формирования пород изученной площади по сравнению с аналогичными образованиями верхнемантийного происхождения и позволяет отнести изученные ультрамафиты к умеренно деплетированным реститам верхней мантии под рифтогенной структурой Палеоуральского бассейна. Геохимическая специализация платиноидной минерализации также указывает на реститовое происхождение ультрамафитов. На этапе остывания и тектонических преобразований ультрамафиты подверглись серпентинизации.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents new data on the structure and composition of ultramafic rocks in the eastern part of the South Kraka massif. It is shown that the studied area is composed predominantly of spinel peridotites, among which the main role belongs to lherzolites with a low content of clinopyroxene (2–5%) and harzburgites, among which lens-shaped and bandshaped inclusions of monomineral olivine rocks – dunites – are quite often observed. The leading role in the structure of the rocks belongs to high-Mg olivine (Fo87-94), a secondary role (2016). Nature of the lithospheric mantle beneath the Arabian Shield and genesis of Al-spinel micropods: Evidence from the mantle xenoliths of Harrat is played by high-Mg orthopyroxene (enstatite) and Ca-Mg clinopyroxene diopside. Rare minerals of the mantle stage are amphibole and plagioclase. A typical accessory mineral of ultramafic rocks is spinel, the composition of which varies from high-Al in lherzolites (Cr# = 0.16–0.3), to moderate-Al in harzburgites (Cr# = 0.3–0.55) and to high-Cr in dunites (Cr# = 0.6–0.85). Of the rare accessory minerals in the rocks, the following were identified: native copper, pentlandite, awaruite and PGM (laurite, irarsite, Os-Ir-Ru-alloys). The section of mantle ultramafic rocks of the Sargan Range completed its high-temperature evolution to the levels of the plagioclase peridotite facies, partly in the transition zone from spinel to plagioclase facies. An assessment of oxygen fugacity allows us to speak about more reducing conditions for the formation of rocks of the studied area compared to other similar formations of upper mantle origin and allows us to classify the studied ultramafic rocks as moderately depleted restites of the upper mantle under the riftogenic structure of the Paleo-Ural basin. The geochemical specialization of PGM also indicates a restite origin of ultramafic rocks. At the stage of cooling and tectonic transformations in the crust, ultramafic rocks underwent serpentinization.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ультрамафиты</kwd><kwd>офиолиты</kwd><kwd>лерцолиты</kwd><kwd>гарцбургиты</kwd><kwd>хромшпинелиды</kwd><kwd>минералы платиновой группы</kwd><kwd>Южный Крака</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ultramafic rocks</kwd><kwd>ophiolite</kwd><kwd>lherzolite</kwd><kwd>harzburgite</kwd><kwd>Cr-spinel</kwd><kwd>PGM</kwd><kwd>Southern Kraka</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены за счёт ГРАНТ А РНФ №22–17–00019</funding-statement><funding-statement xml:lang="en">The research was supported by RSF grant No. 22-17-00019</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Артемов В.Р., Кузнецова В.Н. (1979). Киембайское месторождение хризотил-асбеста. М.: Недра, 233 с.</mixed-citation><mixed-citation xml:lang="en">Ahmed A.H., Moghazi A.K.M., Moufti M.R., Dawood Y.H., Ali K.A. (2016). Nature of the lithospheric mantle beneath the Arabian Shield and genesis of Al-spinel micropods: Evidence from the mantle xenoliths of Harrat Kishb, Western Saudi Arabia. Lithos, (240–243), pp. 119–139. https://doi.org/10.1016/j.lithos.2015.11.016</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Базылев Б.А. (2003). Петролого-геохимическая эволюция мантийного вещества в литосфере: сравнительное изучение океанических и альпинотипных шпинелевых перидотитов. Дисс. … д-ра геол-минерал. наук. М.: ГеоХИ, 371 с.</mixed-citation><mixed-citation xml:lang="en">Arai S. (1994). Characterization of spinel peridotites by olivine-spinel compositional relationships: Review and interpretation. Chemical Geology, (113), pp. 191–204. https://doi.org/10.1016/0009-2541(94)90066-3</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Варлаков А.С. (1986). Петрология процессов серпентинизации гипербазитов складчатых областей. Свердловск: УНЦ АН СССР, 224 с.</mixed-citation><mixed-citation xml:lang="en">Arai S., Ishimaru S. (2008). Insights into petrological characteristics of the lithosphere of mantle wedge beneath arcs through peridotite xenoliths: a review. Journal of Petrology, (49), pp. 665–695. https://doi.org/10.1093/petrology/egm069</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Денисова Е.А. (1990). Структура ультраосновного массива Южный Крака (Южный Урал). Известия АН СССР, Серия геологическая, 1, с. 45–63.</mixed-citation><mixed-citation xml:lang="en">Ballhaus C., Berry R., Green D. (1991). High pressure experimental calibration of the olivineorthopyroxene-spinel oxygen geobarometer: Implication for the oxydation state of the upper mantle. Contribution to Mineralogy and Petrology, (107), pp. 27–40. https://doi.org/10.1007/BF00311183</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Дмитриев Л.В., Уханов А.В., Шараськин Л.Я. (1972). К вопросу о составе вещества верхней мантии. Геохимия, 10, с. 1155–1167.</mixed-citation><mixed-citation xml:lang="en">Basylev B.A. (2003). Petrological and chemical evolution of mantle matter in lithosphere: comparisonal study of oceanic and alpine-type spinel peridotites. Dr. geol. and min. sci. diss. Moscow: GEOKHI, 371 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Квятковский Р.Э. (1929). Геологическое описание площади между р.Белой и восточным склоном хр.Ирендык. Уфа, БТГУ.</mixed-citation><mixed-citation xml:lang="en">Brey G.P., Köhler T. (1990). Geothermobarometry in 4-phase lherzolites: 2. New thermobarometers, and practical assessment of existing thermobarometers. Journal of Petrology, (31), pp. 1353–1378. https://doi.org/10.1093/petrology/31.6.1353</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Клочихин А.В., Радченко В.В., Буряченко А.В. (1969). Геологическое строение северной части Зилаирского мегасинклинория и сопредельных территорий. Уфа: БТГФ.</mixed-citation><mixed-citation xml:lang="en">Chashchukhin I.S., Votyakov S.L. (2009). Behavior of iron-group elements, oxybarometry, and genesis of unique chromite deposits in the Kempirsai massif. Geology of Ore Deposits, 51, pp. 123–138. https://doi.org/10.1134/S1075701509020044</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Князев Ю. Г., Князева О. Ю., Сначев В. И., Жданов А. В. (2013). Го сударственная геологиче ская карт а ро ссийской Федерации. Масштаб 1: 1 000 000 (третье поколение). серия Уральская. Лист N-40 (Уфа). Объяснительная записка. СПб.: Картографическая фабрикаВСЕГЕИ, 512 с.</mixed-citation><mixed-citation xml:lang="en">Coleman R.G. (1979). Ophiolites. Moscow: Mir, 262 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Ковалев С.Г., Сначев В.И. (1998). Гипербазитовые массивы Крака (геология, петрология, металлогения). Уфа: УНЦ РАН, 104 с.</mixed-citation><mixed-citation xml:lang="en">Denisova E.A. (1990). Structure of the South Kraka ultrabasic massif. Izvestiya AN SSSR, Seriya geologicheskaya, 1, pp. 45–63. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Колман Р.Г. (1979). Офиолиты. М.: Мир, 262 с.</mixed-citation><mixed-citation xml:lang="en">Dmitriev L.V., Ukhanov A.V., Sharaskin L.Y. (1972). On the question of the composition of the material of the upper mantle. Geokhimiya, 10, pp. 1155–1167. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Логинов В.П. (1933). Отчет о геологических исследованиях в районе перидотитовых массивов в 1932 г. (геологическая съемка М 1:50 000). Уфа: БТГУ.</mixed-citation><mixed-citation xml:lang="en">Fabries J. (1979). Spinel-olivine geothermometry in peridotites from ultramafic complexes. Contribution to Mineralogy and Petrology, (69), pp. 329–336. https://doi.org/10.1007/BF00372258</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Павлов Н.В. (1949). Химический состав хромшпинелидов в связи с петрографическим составом пород ультраосновных интрузивов. Труды института геологических наук АН СССР, 13(103), c. 10–35.</mixed-citation><mixed-citation xml:lang="en">Farafontiev P.G. (1937). Geology and chromite deposits of the Kraka peridotite massifs in the South Urals. Ufa, BTSU (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Пучков В.Н. (2010). Геология Урала и Приуралья (актуальные вопросы стратиграфии, тектоники, геодинамики и металлогении). Уфа: ДизайнПолиграфсервис, 280 с.</mixed-citation><mixed-citation xml:lang="en">Green D.H., Falloon T.J. (1998). Pyrolite: a Ringwood concept and its current expression. In: Jackson I (ed) The Earth’s mantle composition, Structure and Evolution 7. Cambridge University Press, Cambridge, pp. 311–378.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е. (2018). Ультрамафитовые Массивы Крака (Южный Урал): особенности строения и состава перидотит-дунит-хромитовых ассоциаций. Уфа: Башк. энцикл, 204 с.</mixed-citation><mixed-citation xml:lang="en">Hellebrand, E., Snow, J.E., Dick, H.J.B., Hofmann A. (2001). Coupled major and trace elements as indicators of the extent of melting in midocean-ridge peridotites. Nature, 410(6829), pp. 677–681. https://doi.org/10.1038/35070546</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е., Гатауллин Р.А. (2021). Лерцолиты Азнагуловской площади (Южный Урал): состав и P-T-fO условия образования. Вестник Академии наук по Республике Башкортостан, 3(103), c. 15–25.</mixed-citation><mixed-citation xml:lang="en">Kovalev S.G., Snachev V.I. (1998). Gyperbasite Kraka massifs (geology, petrology, metallogeny). Ufa: USC RAS, 104 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е., Гордеев В.Ю. (2019). Вариации состава минералов в перидотит-дунит-хромититовой ассоциации массива узянский Крака (Южный Урал). Геология. Известия отделения наук о Земле и природных ресурсов АНРБ, 26, c. 21–28.</mixed-citation><mixed-citation xml:lang="en">Kvyatkovskii R.E. (1929). Geological description of the area between the Belaya river and the eastern slope of the Irendyk ridge. Ufa, BTSU (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е., Сначев, В.И., Савельева, Е.Н., Бажин, Е.А. (2008). Геология, петрогеохимия и хромитоносность габбро-гипербазитовых массивов Южного Урала. Уфа: ДизайнПолиграфсервис, 320 с.</mixed-citation><mixed-citation xml:lang="en">Leake B.E., Woolley A.R., Arps C.E.S., Birch W.D., Gilbert M.C., Grice J.D., Hawthorne W.C., Kato A., Kisch K.J., Krivovichev V.G., Lithout K., Laird J., Mandarino J.A., Maresch W.V., Nickel E.A., Rock N.M.S., Schumacher J.C., Smith D.C., Stephenson N.C.N., Ungaretti L., Whittaker E.J.W., Youzhi G. (1997). Nomenclature of amphiboles; report of the subcommittee on amphiboles of the International Mineralogical Association commission on new minerals and mineral names. Canadian Mineralogist, (35), pp. 219–246. https://doi.org/10.1127/ejm/9/3/0623</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Савельева Г.Н. (1987). Габбро-ультрабазитовые комплексы офиолитов Урала и их аналоги в современной океанической коре. М.: Наука, 246 с.</mixed-citation><mixed-citation xml:lang="en">Loginov V.P. (1933). Report on geological investigations in the area of peridotite massifs in 1932 (geological survey M 1:50 000). Ufa, BTSU (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Савельева Г.Н., Батанова В.Г., Соболев А.В. (2016) Твердофазный распад пироксен-хромшпинель в мантийных лерцолитах офиолитового комплекса Сыум-Кеу на Полярном Урале. Геология и геофизика, 57(10), с. 1808–1827.</mixed-citation><mixed-citation xml:lang="en">Ono A. (1983). Fe-Mg partioning between spinel and olivine. J. Japan. Assoc. Min. Petr. Econ. Geol, (78), pp. 115–122. https://doi.org/10.2465/ganko1941.78.115</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Сначев В.И., Савельев, Д.Е., Рыкус, М.В. (2001) Петрогеохимические особенности пород и руд габбро-гипербазитовых массивов Крака. Уфа, 212 с.</mixed-citation><mixed-citation xml:lang="en">Ozawa K (1983). Evaluation of olivine-spinel geothermometry as an indicator of thermal history for peridotites. Contribution to Mineralogy and Petrology, (82), pp. 52–65. https://doi.org/10.1007/BF00371175</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Соболев Н.Д. (1952). Ультрабазиты Большого Кавказа. М.: Госгеолиздат, 240 с.</mixed-citation><mixed-citation xml:lang="en">Parkinson I.J., Pearce J.A. (1998). Peridotites from the Izu–Bonin– Mariana forearc (ODP Leg 125): evidence for mantle melting and melt–mantle interaction in a supra-subduction zone setting. Journal of Petrology, (39), pp.1577–1618. https://doi.org/10.1093/petroj/39.9.1577</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Соколов Г.А. (1948). Хромиты Урала, их состав, условия кристаллизации и закономерности распростРАНения. Труды ИГН АН СССР, серия рудных месторождений, 12.</mixed-citation><mixed-citation xml:lang="en">Pavlov N.V. (1949). Chemical composition of Cr-spinels in connection with the petrographic composition of rocks of ultramafic intrusions. Trudy instituta geologicheskikh nauk AN SSSR, 13(103), pp. 10–35. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Тиховидов С.Ф. (1932). Промышленный и сокращенный предварительный геологический отчет начальника I Хромитовой ГРП Башгеолтреста о геолого-разведочных работах в Кагинском, Башартском и Ха-митовском районах республики за 1931 г. Уфа: БТГУ.</mixed-citation><mixed-citation xml:lang="en">Puchkov V.N. (2010). Geology of the Urals and the Urals (current issues of stratigraphy, tectonics, geodynamics and metallogeny). Ufa: DizainPoligrafServis, 280 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Фарафонтьев П.Г. (1937). Геология и хромитовые месторождения района перидотитовых массивов Крака на Южном Урале. Уфа: БТГУ.</mixed-citation><mixed-citation xml:lang="en">Putrika K.D. (2008). Thermometers and Barometers for Volcanic Systems. Reviews in Mineralogy and Geochemistry, (69), pp. 61–120. https://doi.org/10.2138/rmg.2008.69.3</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Чащухин И.С., Вотяков С.Л. (2009). Поведение элементов группы железа, оксибарометрия и генезис уникальных месторождений хрома Кемпирсайского массива. Геология рудных месторождений, 51, с. 123–138.</mixed-citation><mixed-citation xml:lang="en">Roeder R.L., Campbell I.H., Jamieson H.E. (1979). A Re-Evaluation of the Olivine-Spinel Geothermometer. Contribution to Mineralogy and Petrology, (68), pp. 325–334. https://doi.org/10.1007/BF00371554</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Ahmed A.H., Moghazi A.K.M., Moufti M.R., Dawood Y.H., Ali K.A. (2016). Nature of the lithospheric mantle beneath the Arabian Shield and genesis of Al-spinel micropods: Evidence from the mantle xenoliths of Harrat Kishb, Western Saudi Arabia. Lithos, (240–243), pp. 119–139. https://doi.org/10.1016/j.lithos.2015.11.016</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E. (2018). Kraka ultramafic massifs (the Southern Urals): features of structure and composition of peridotite-dunite-chromitite assemblages. Ufa: Bashkir encyclopedia, 204 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Arai S. (1994). Characterization of spinel peridotites by olivine-spinel compositional relationships: Review and interpretation. Chemical Geology, (113), pp. 191–204. https://doi.org/10.1016/0009-2541(94)90066-3</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Gataullin R.A. (2021). Lherzolites of Aznagulovo area (the Southern Urals): composition and PTfO conditions of formation. Vestnik Akademii nauk po Respublike Bashkortostan, 3(103), pp. 15–25. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Arai S., Ishimaru S. (2008). Insights into petrological characteristics of the lithosphere of mantle wedge beneath arcs through peridotite xenoliths: a review. Journal of Petrology, (49), pp. 665–695. https://doi.org/10.1093/petrology/egm069</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Gordeev V.Yu. (2019). Compositional variations of minerals in peridotite-dunite-chromitite assemblages of Uzyan Kraka massif (the Southern Urals). Geologiya. Izvestiya otdeleniya nauk o Zemle i prirodnykh resursov ANRB, 26, pp. 21–28. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Ballhaus C., Berry R., Green D. (1991). High pressure experimental calibration of the olivineorthopyroxene-spinel oxygen geobarometer: Implication for the oxydation state of the upper mantle. Contribution to Mineralogy and Petrology, (107), pp. 27–40. https://doi.org/10.1007/BF00311183</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Makatov D.K., Rakhimov I.R., Gataullin R.A., Shilovskikh V.V. (2022). Silicates from lherzolites in the south-eastern part of the Kempirsay massif as the matter source for giant chromitite deposits (the Southern Urals, Kazakhstan). Minerals, 8(12), p. 1061. https://doi.org/10.3390/min12081061</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Brey G.P., Köhler T. (1990). Geothermobarometry in 4-phase lherzolites: 2. New thermobarometers, and practical assessment of existing thermobarometers. Journal of Petrology, (31), pp. 1353–1378. https://doi.org/10.1093/petrology/31.6.1353</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Snachev V.I., Savelieva E.N., Bazhin E.A. (2008). Geology, petrochemistry and chromitite-bearing of gabbro-gyperbasite massifs of the Southern Urals. Ufa: DizainPoligrafServis, 320 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Fabries J. (1979). Spinel-olivine geothermometry in peridotites from ultramafic complexes. Contribution to Mineralogy and Petrology, (69), pp. 329–336. https://doi.org/10.1007/BF00372258</mixed-citation><mixed-citation xml:lang="en">Savelieva G.N. (1987). Gabbro-ultrabasic complexes of Uralian ophiolites and their analogues in the oceanic crust. Moscow: Nauka, 246 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Green D.H., Falloon T.J. (1998). Pyrolite: a Ringwood concept and its current expression. In: Jackson I (ed) The Earth’s mantle composition, Structure and Evolution 7. Cambridge University Press, Cambridge, pp 311–378.</mixed-citation><mixed-citation xml:lang="en">Savelieva G.N., Batanova V.G., Sobolev A.V. (2016). Pyroxene–Cr-spinel exsolution in mantle lherzolites of the Syum-Keu ophiolite massif (Arctic Urals). Russian Geology and Geophysics, 57, pp. 1419–1436. https://doi.org/10.1016/j.rgg.2015.12.001</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Hellebrand, E., Snow, J.E., Dick, H.J.B., Hofmann A. (2001). Coupled major and trace elements as indicators of the extent of melting in midocean-ridge peridotites. Nature, 410(6829), pp. 677–681. https://doi.org/10.1038/35070546</mixed-citation><mixed-citation xml:lang="en">Snachev V.I., Saveliev D.E., Rykus M.V. (2001). Petrochemical features of rocks and ores of Kraka gabbro-ultrabasic massifs. Ufa: BashGU, 212 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Leake B.E., Woolley A.R., Arps C.E.S., Birch W.D., Gilbert M.C., Grice J.D., Hawthorne W.C., Kato A., Kisch K.J., Krivovichev V.G., Lithout K., Laird J., Mandarino J.A., Maresch W.V., Nickel E.A., Rock N.M.S., Schumacher J.C., Smith D.C., Stephenson N.C.N., Ungaretti L., Whittaker E.J.W., Youzhi G. (1997). Nomenclature of amphiboles; report of the subcommittee on amphiboles of the International Mineralogical Association commission on new minerals and mineral names. Canadian Mineralogist, (35), pp. 219–246. https://doi.org/10.1127/ejm/9/3/0623</mixed-citation><mixed-citation xml:lang="en">Sobolev N.D. (1952). Ultrabasites of Greater Caucasus. Moscow: Gosgeolizdat, 240 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Ono A. (1983). Fe-Mg partioning between spinel and olivine. J. Japan. Assoc. Min. Petr. Econ. Geol, (78), pp. 115–122. https://doi.org/10.2465/ganko1941.78.115</mixed-citation><mixed-citation xml:lang="en">Sokolov G.A. (1948). Chromites of Urals, their composition, crystallisation conditions and regularities of distribution. Moscow: Trudy of IGN AN SSSR, 12, 128 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Ozawa K (1983). Evaluation of olivine-spinel geothermometry as an indicator of thermal history for peridotites. Contribution to Mineralogy and Petrology, (82), pp. 52–65. https://doi.org/10.1007/BF00371175</mixed-citation><mixed-citation xml:lang="en">Tikhovidov S.F. (1932) Industrial and abbreviated preliminary geological report of the head of the I Chromite geological group of Bashgeoltrest on geological exploration work in the Kaginsky, Bashartsky and Khamitovsky regions of the republic for 1931. Ufa: BTGU. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Parkinson I.J., Pearce J.A. (1998). Peridotites from the Izu–Bonin– Mariana forearc (ODP Leg 125): evidence for mantle melting and melt–mantle interaction in a supra-subduction zone setting. Journal of Petrology, (39), pp.1577–1618. https://doi.org/10.1093/petroj/39.9.1577</mixed-citation><mixed-citation xml:lang="en">Varlakov A.S. (1986). Petrology of serpentinization processes of gyperbasites of folded regions. Sverdlovsk: UNTc AN SSSR, 224 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Putrika K.D. (2008). Thermometers and Barometers for Volcanic Systems. Reviews in Mineralogy and Geochemistry, (69), pp. 61–120. https://doi.org/10.2138/rmg.2008.69.3</mixed-citation><mixed-citation xml:lang="en">Wells P.R.A. (1977). Pyroxene thermometry in simple and complex systems. Contribution to Mineralogy and Petrology, (62), pp. 129–139. https://doi.org/10.1007/BF00372872</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Roeder R.L., Campbell I.H., Jamieson H.E. (1979). A Re-Evaluation of the Olivine-Spinel Geothermometer. Contribution to Mineralogy and Petrology, (68), pp. 325–334. https://doi.org/10.1007/BF00371554</mixed-citation><mixed-citation xml:lang="en">Whitney D.L., Evans B.W. (2010). Abbreviations for names of rockforming minerals. Am. Mineral., (95), pp. 185–187. https://doi.org/10.2138/am.2010.3371</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Saveliev D.E., Makatov D.K., Rakhimov I.R., Gataullin R.A., Shilovskikh V.V. (2022). Silicates from lherzolites in the south-eastern part of the Kempirsay massif as the matter source for giant chromitite deposits (the Southern Urals, Kazakhstan). Minerals, 8(12), p. 1061. https://doi.org/10.3390/min12081061</mixed-citation><mixed-citation xml:lang="en">Wood B.J., Banno S. (1973). Garnet-orthopyroxene and orthopyroxeneclinopyroxene relationships in simple and complex systems. Contribution to Mineralogy and Petrology, (42), pp. 109–124. https://doi.org/10.1007/BF00371501</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Wells P.R.A. (1977). Pyroxene thermometry in simple and complex systems. Contribution to Mineralogy and Petrology, (62), pp. 129–139. https://doi.org/10.1007/BF00372872</mixed-citation><mixed-citation xml:lang="en">Wells P.R.A. (1977). Pyroxene thermometry in simple and complex systems. Contribution to Mineralogy and Petrology, (62), pp. 129–139. https://doi.org/10.1007/BF00372872</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Whitney D.L., Evans B.W. (2010). Abbreviations for names of rockforming minerals. Am. Mineral., (95), pp. 185–187. https://doi.org/10.2138/am.2010.3371</mixed-citation><mixed-citation xml:lang="en">Whitney D.L., Evans B.W. (2010). Abbreviations for names of rockforming minerals. Am. Mineral., (95), pp. 185–187. https://doi.org/10.2138/am.2010.3371</mixed-citation></citation-alternatives></ref><ref id="cit43"><label>43</label><citation-alternatives><mixed-citation xml:lang="ru">Wood B.J., Banno S. (1973). Garnet-orthopyroxene and orthopyroxeneclinopyroxene relationships in simple and complex systems. Contribution to Mineralogy and Petrology, (42), pp. 109–124. https://doi.org/10.1007/BF00371501</mixed-citation><mixed-citation xml:lang="en">Wood B.J., Banno S. (1973). Garnet-orthopyroxene and orthopyroxeneclinopyroxene relationships in simple and complex systems. Contribution to Mineralogy and Petrology, (42), pp. 109–124. https://doi.org/10.1007/BF00371501</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
