<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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.2022.3.17</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-124</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>Хромититы Уфалейского ультрамафитового массива (Южный Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Chromitite deposits of Ufaley ultramafic 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>Дмитрий Евгеньевич Савельев – доктор геол.-мин. наук, профессор Академии наук Республики Башкортостан</p><p>450077, Уфа, ул. К.Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Dmitry E. Saveliev – Dr. Sci. (Geology and Mineralogy), Professor of the Academy of Sciences of the Republic of Bashkortostan</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-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 Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>13</day><month>04</month><year>2024</year></pub-date><volume>24</volume><issue>3</issue><fpage>197</fpage><lpage>209</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савельев Д.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Савельев Д.Е.</copyright-holder><copyright-holder xml:lang="en">Saveliev D.E.</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/124">https://www.geors.ru/jour/article/view/124</self-uri><abstract><p>В статье обобщены данные о морфологии, составе, текстурных и структурных особенностях хромититовых залежей Уфалейского ультрамафитового массива. Минералого-геохимические особенности вмещающих ультрамафитов позволяют интерпретировать их как деплетированный рестит от частичного плавления мантийных перидотитов. Отмечены относительно широкие вариации месторождений по составу рудообразующих хромшпинелидов (#Cr 0.6–0.8) и заметный метаморфизм вкрапленных руд с замещением хромита хроммагнетитом. Предполагается, что хромититовые тела были изначально сформированы в условиях верхней мантии по реоморфическому механизму, а затем произошла их структурно-геохимическая трансформация в коллизионной обстановке верхней части земной коры. Уплощенные тела вкрапленных хромититов сохранились вблизи компетентных блоков габброидов, тогда как другие залежи были превращены в линзовидные и подиформные тела густовкрапленных и массивных руд меньшего размера. Холодная тектоника корового этапа привела к дезинтеграции залежей и одновременному локальному обогащению будинированных тел хромититов.</p></abstract><trans-abstract xml:lang="en"><p>Data on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted restite from partial melting of mantle peridotites. Relatively wide variations in the composition of ore-forming chromian spinel grains (#Cr 0.6–0.8) and noticeable metamorphism of disseminated ores with replacement of chromite by Cr-magnetite are noted. It is assumed that chromitite bodies were initially formed under the conditions of the upper mantle by a rheomorphic mechanism, and then their structural and geochemical transformation took place in the collisional setting of the upper part of the crust. Flattened bodies of disseminated chromitites have been preserved near competent gabbroid blocks, while other deposits have been transformed into lenses and podiform bodies of densely disseminated and massive ores of smaller size. The “cold tectonics” of the crustal stage led to the disintegration of deposits and the simultaneous local enrichment of deformed chromitite bodies.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хромититы</kwd><kwd>ультрамафиты</kwd><kwd>офиолиты</kwd><kwd>Уфалейский массив</kwd><kwd>Южный Урал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chromitite</kwd><kwd>ultramafic rocks</kwd><kwd>ophiolite</kwd><kwd>Ufaley massif</kwd><kwd>South Urals</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Аналитические исследования и предпечатная подготовка статьи выполнены за счет гранта РНФ №22–17– 00019. В экспедиционных работах принимали участие Е.А. Бажин, А.А. Малиновская, Р.Е. Николаев, которым автор хотел бы выразить признательность. Полевые исследования частично финансированы по теме Госзадания Минобрнауки РФ (№ FMRS-2022-0011).</funding-statement><funding-statement xml:lang="en">Analytical research and prepress preparation of the article were supported by the Russian Science Foundation grant No. 22-17-00019. E.A. Bazhin, A.A. Malinovskaya, R.E. Nikolaev, to whom the author would like to express his gratitude, took part in the field studies. Field research was partially funded by the State Assignment of the Ministry of Education and Science of the Russian Federation (No. FMRS-2022-0011).</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">Бажин Е.А., Савельев Д.Е., Сначёв В.И. (2010). Габбро-гипербазитовые комплексы зоны сочленения Магнитогорской и Тагильской мегазон: строение и условия формирования. Уфа: ДизайнПолиграфСервис, 244 с.</mixed-citation><mixed-citation xml:lang="en">Arai S., Miura M. (2016). Formation and modification of chromitites in the mantle. Lithos, 264, pp. 277-295. https://doi.org/10.1016/j.lithos.2016.08.039</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Бок И.И. (1927). Месторождения хромистого железняка в ВерхнеУфалейской даче. 77 с.</mixed-citation><mixed-citation xml:lang="en">Ballhaus C. (1998). Origin of the podiform chromite deposits by magma mingling. Earth and Planetary Science Letters, 156, pp. 185-193. https://doi.org/10.1016/S0012-821X(98)00005-3</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Зиновьев В.Н. (2006). Отчет о результатах поисковых и поисковооценочных работ на хромиты в пределах Уфалейского и Каркодинского ультраосновных массивов за 1998–2004 гг. с подсчетом запасов по состоянию на 01.01.2004 г. и оценкой прогнозных ресурсов. Вишневогорск.</mixed-citation><mixed-citation xml:lang="en">Bazhin E.A., Saveliev D.E., Snachev V.I. (2010). Gabbro-gyperbasite complexes of junction area of Magnitogorsk and Tagil megazones: structure and formation conditions. Ufa: DizaynPoligrafServis, 244 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Кравченко Г.Г. (1969). Роль тектоники при кристаллизации хромитовых руд Кемпирсайского плутона. М: Наука, 232 с.</mixed-citation><mixed-citation xml:lang="en">Bok I.I. (1927). Deposits of chromium iron ore in Verkhne-Ufaleyskaya dacha. 77 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Красулин В.С. (1939). Отчет о геологической съемке Уфалейского хромитоносного района (Геологическая карта Урала, масштаб 1: 50 000. Планшеты N-41-133-А, Б, В, Г; N-41-1-Б; N-41-2-А). 280 с.</mixed-citation><mixed-citation xml:lang="en">Borisova A.Y., Ceuleneer G., Kamenetsky V.S., Arai S., Béjina F., Abily B., Bindeman I.N., Polvé M., De Parseval P., Aigouy T., Pokrovski G.S. (2012). A new view on the petrogenesis of the Oman ophiolite chromitites from microanalyses of chromite-hosted inclusions. Journal of Petrology, 53, pp. 2411-2440. https://doi.org/10.1093/petrology/egs054</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Павлов Н.В., Григорьева-Чупрынина И.И. (1973). Закономерности формирования хромитовых месторождений. М: Наука, 200 с.</mixed-citation><mixed-citation xml:lang="en">Cassard D., Nicolas A., Rabinowitch M., Moutte J., Leblanc M., Prinzhoffer A. (1981). Structural Classification of Chromite Pods in Southern New Caledonia. Economic Geology, 76, pp. 805-831. https://doi.org/10.2113/gsecongeo.76.4.805</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Павлов Н.В., Кравченко Г.Г., Чупрынина И.И. (1968). Хромиты Кемпирсайского плутона. М: Наука, 178 с.</mixed-citation><mixed-citation xml:lang="en">Chaschukhin I.S., Votyakov S.L., Schapova Yu.V. (2007). Crystal chemistry of Cr-spinel and oxythermobarometry of ultramafic rocks of folded regions. Ekaterinburg: IGG UB RAS, 310 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Парфёнов В. В. и др. (1989). Геологическое доизучение масштаба 1: 50000 Карабашской площади и общие поиски меди: Фонды УГУ, Свердловск, 280 с.</mixed-citation><mixed-citation xml:lang="en">Dickey J.S. (1975). A hypothesis of origin for podiform chromite deposits. Geochimica et Cosmochimica Acta, 39, pp. 1061-1075. https://doi.org/10.1016/0016-7037(75)90047-2</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Реестр хромитопроявлений в альпинотипных ультрабазитах Урала (2000). Под. ред. Б.В. Перевозчикова. Пермь, 474 с.</mixed-citation><mixed-citation xml:lang="en">Gonzalez-Jimenez J.M., Griffin W.L., Proenza A., Gervilla F., O’Reilly S.Y., Akbulut M., Pearson N.J., Arai S. (2014). Chromitites in ophiolites: how, where, when, why? Part II. The crystallisation of chromitites. Lithos, 189, pp. 148-158. https://doi.org/10.1016/j.lithos.2013.09.008</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е. (2018). Ультрамафитовые массивы Крака (Южный Урал): особенности строения и состава перидотит-дунит-хромититовых ассоциаций. Уфа: Башк. энцик., 304 с.</mixed-citation><mixed-citation xml:lang="en">Hock M., Friedrich G. (1985) .Structural features of ophiolitic chromitites in the Zambales Range, Luzon, Philippines. Mineralium Deposita, 20, pp. 290-301. https://doi.org/10.1007/BF00204289</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е., Пучков В.Н., Сергеев С.Н., Мусабиров И.И. (2017). О деформационно-индуцированном распаде энстатита в мантийных перидотитах и его значении для процессов частичного плавления и хромитообразования. Доклады академии наук, 276(2), с. 1-5.</mixed-citation><mixed-citation xml:lang="en">Johan Z., Martin R.F., Ettler V. (2017). Fluids are bound to be involved in the formation of ophiolitic chromite deposits. European Journal of Mineralogy, 29, pp. 543-555. https://doi.org/10.1127/ejm/2017/0029-2648</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Савельев Д.Е., Федосеев В.Б. (2019). Твёрдофазное перераспределение минеральных частиц в восходящем мантийном потоке как механизм концентрации хромита в офиолитовых ультрамафитах (на примере офиолитов Крака, Южный Урал). Георесурсы, 21(1), c. 31-46. https://doi.org/10.18599/grs.2019.1.31-46</mixed-citation><mixed-citation xml:lang="en">Krasulin V.S. (1939). Report on the geological survey of the Ufaley chromite-bearing region (Geological map of the Urals, scale 1: 50,000. Tablets N-41-133-A, B, C, D; N-41-1-B; N-41-2-A). 280 p., No. 07927. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Чащухин И.С., Вотяков С.Л., Щапова Ю.В. (2007). Кристаллохимия хромшпинели и окситермобарометрия ультрамафитов складчатых областей. Екатеринбург: ИГиГ УрО РАН, 310 с.</mixed-citation><mixed-citation xml:lang="en">Kravchenko G.G. (1969). The role of tectonics in the crystallization of chromite ores of the Kempirsay pluton. Moscow: Nauka, 232 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Arai S., Miura M. (2016). Formation and modification of chromitites in the mantle. Lithos, 264, pp. 277-295. https://doi.org/10.1016/j.lithos.2016.08.039</mixed-citation><mixed-citation xml:lang="en">Lago B.L., Rabinowicz M., Nicolas A. (1982). Podiform chromite ore bodies: a genetic model. Journal of Petrology, 23, pp. 103-125. https://doi.org/10.1093/petrology/23.1.103</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Ballhaus C. (1998). Origin of the podiform chromite deposits by magma mingling. Earth and Planetary Science Letters, 156, pp. 185-193. https://doi.org/10.1016/S0012-821X(98)00005-3</mixed-citation><mixed-citation xml:lang="en">Leblanc M., Ceuleneer G. (1992). Chromite crystallization in a multicellular magma flow: evidence from a chromitite dike in the Oman ophiolite. Lithos, 27, pp. 231-257. https://doi.org/10.1016/0024-4937(91)90002-3</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Borisova A.Y., Ceuleneer G., Kamenetsky V.S., Arai S., Béjina F., Abily B., Bindeman I.N., Polvé M., De Parseval P., Aigouy T., Pokrovski G.S. (2012). A new view on the petrogenesis of the Oman ophiolite chromitites from microanalyses of chromite-hosted inclusions. Journal of Petrology. 53, pp. 2411-2440. https://doi.org/10.1093/petrology/egs054</mixed-citation><mixed-citation xml:lang="en">Matveev S., Ballhaus C. (2002). Role of water in the origin of podiform chromitite deposits. Earth and Planetary Science Letters, 203, pp. 235-243. DOI: 10.1016/S0012-821X(02)00860-9</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Cassard D., Nicolas A., Rabinowitch M., Moutte J., Leblanc M., Prinzhoffer A. (1981). Structural Classification of Chromite Pods in Southern New Caledonia. Economic Geology, 76, pp. 805-831. https://doi.org/10.2113/gsecongeo.76.4.805</mixed-citation><mixed-citation xml:lang="en">Ono A. (1983). Fe-Mg partioning between spinel and olivine. Journal of Japanese Association of Mineralogy, Petrology and Economic Geology, 78, pp. 115-122. https://doi.org/10.2465/ganko1941.78.115</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Dickey J.S. (1975). A hypothesis of origin for podiform chromite deposits. Geochimica et Cosmochimica Acta, 39, pp. 1061-1075. https://doi.org/10.1016/0016-7037(75)90047-2</mixed-citation><mixed-citation xml:lang="en">Pavlov N.V., Grigoryeva-Chuprynina I.I. (1973). Regularities of the formation of chromite deposits. Moscow: Nauka, 200 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Gonzalez-Jimenez J.M., Griffin W.L., Proenza A., Gervilla F., O’Reilly S.Y., Akbulut M., Pearson N.J., Arai S. (2014). Chromitites in ophiolites: how, where, when, why? Part II. The crystallisation of chromitites. Lithos, 189, pp. 148–158. https://doi.org/10.1016/j.lithos.2013.09.008</mixed-citation><mixed-citation xml:lang="en">Pavlov N.V., Kravchenko G.G., Chuprynina I.I. (1968). Chromites of Kempirsay pluton. Moscow: Nauka, 178 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Hock M., Friedrich G. (1985) .Structural features of ophiolitic chromitites in the Zambales Range, Luzon, Philippines. Mineralium Deposita, 20, pp. 290–301. https://doi.org/10.1007/BF00204289</mixed-citation><mixed-citation xml:lang="en">Register of chromite occurences in the alpine-type ultrabasites (2000). Ed. Perevozchikov B.V. Perm, 474 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Johan Z., Martin R.F., Ettler V. (2017). Fluids are bound to be involved in the formation of ophiolitic chromite deposits. European Journal of Mineralogy, 29, pp. 543–555. https://doi.org/10.1127/ejm/2017/0029-2648</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="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Lago B.L., Rabinowicz M., Nicolas A. (1982). Podiform chromite ore bodies: a genetic model. Journal of Petrology, 23, pp. 103–125. https://doi.org/10.1093/petrology/23.1.103</mixed-citation><mixed-citation xml:lang="en">Rost F. (1959). Probleme ultrabasischer Gesteine und ihrer Lagerstatten. Freiberger Forschungshefte. Berlin.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Leblanc M., Ceuleneer G. (1992). Chromite crystallization in a multicellular magma flow: evidence from a chromitite dike in the Oman ophiolite. Lithos, 27, pp. 231–257. https://doi.org/10.1016/0024-4937(91)90002-3</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E. (2018). Ultramafic massifs of Kraka (South Urals): structural and compositional features of peridotite-dunite-chromitite associations. Ufa: Bash. encyclopediya, 304 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Matveev S., Ballhaus C. (2002). Role of water in the origin of podiform chromitite deposits. Earth and Planetary Science Letters, 203, pp. 235–243. DOI: 10.1016/S0012-821X(02)00860-9</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E. (2021). Chromitites of the Kraka ophiolite (South Urals, Russia): geological, mineralogical and structural features. Mineralium Deposita. https://doi.org/10.1007/s00126-021-01044-5</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Ono A. (1983). Fe-Mg partioning between spinel and olivine. Journal of Japanese Association of Mineralogy, Petrology and Economic Geology, 78, pp. 115–122. https://doi.org/10.2465/ganko1941.78.115</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Fedoseev V.B. (2019). Solid-state redistribution of mineral particles in the upwelling mantle flow as a mechanism of chromite concentration in the ophiolite ultramafic rocks (by the example of Kraka ophiolite, the Southern Urals). Georesursy = Georesources, 21(1), pp. 31-46. https://doi.org/10.18599/grs.2019.1.31-46</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</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">Saveliev D.E., Puchkov V.N., Sergeev S.N., Musabirov I.I. (2017). Deformation-induced decomposition of enstatite in mantle peridotite and its role in partial melting and chromite ore formation. Doklady Earth Sciences, 476(1), pp. 1058-1061. DOI: 10.1134/S1028334X17090161</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Rost F. (1959). Probleme ultrabasischer Gesteine und ihrer Lagerstatten. Freiberger Forschungshefte. Berlin.</mixed-citation><mixed-citation xml:lang="en">Saveliev D.E., Shilovskikh V.V., Sergeev S.N., Kutyrev A.V. (2021). Chromian spinel neomineralisations and the microstructure of plastically deformed ophiolitic peridotites (Kraka massifs, Southern Urals, Russia). Mineralogy and Petrology. https://doi.org/10.1007/s00710-021-00748-w</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Saveliev D.E. (2021). Chromitites of the Kraka ophiolite (South Urals, Russia): geological, mineralogical and structural features. Mineralium Deposita. https://doi.org/10.1007/s00126-021-01044-5</mixed-citation><mixed-citation xml:lang="en">Thayer T.P. (1964). Principal features and origin of podiform chromite deposits, and some observations on the Guleman-Soridag District, Turkey. Economic Geology, 59, pp. 1497-1524. https://doi.org/10.2113/gsecongeo.59.8.1497</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Saveliev D.E., Shilovskikh V.V., Sergeev S.N., Kutyrev A.V. (2021). Chromian spinel neomineralisations and the microstructure of plastically deformed ophiolitic peridotites (Kraka massifs, Southern Urals, Russia). Mineralogy and Petrology. https://doi.org/10.1007/s00710-021-00748-w</mixed-citation><mixed-citation xml:lang="en">Whitney Donna L., Evans Bernard W. (2010). Abbreviations for names of rock-forming minerals. American Mineralogist, 95(1), pp. 185-187. https://doi.org/10.2138/am.2010.3371</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Thayer T.P. (1964). Principal features and origin of podiform chromite deposits, and some observations on the Guleman-Soridag District, Turkey. Economic Geology, 59, pp. 1497–1524. https://doi.org/10.2113/gsecongeo.59.8.1497</mixed-citation><mixed-citation xml:lang="en">Zhou M-F., Robinson P.T., Malpas J., Li Z. (1996). Podiform Chromitites in the Luobusa Ophiolite (Southern Tibet): Implications for Melt-Rock Interaction and Chromite Segregation in the Upper Mantle. Journal of Petrology, 37, pp. 3-21. https://doi.org/10.1093/petrology/37.1.3</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Whitney Donna L., Evans Bernard W. (2010). Abbreviations for names of rock-forming minerals. American Mineralogist, 95(1), pp. 185–187. https://doi.org/10.2138/am.2010.3371</mixed-citation><mixed-citation xml:lang="en">Zinov’ev V.N. (2006). Report on the results of exploration and prospecting work for chromites within the Ufalei and Karkoda ultrabasic massifs for 1998–2004 with a calculation of reserves as of 01.01.2004 and an estimate of forecast resources. Vishnevogorsk. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Zhou M-F., Robinson P.T., Malpas J., Li Z. (1996). Podiform Chromitites in the Luobusa Ophiolite (Southern Tibet): Implications for Melt-Rock Interaction and Chromite Segregation in the Upper Mantle. Journal of Petrology, 37, pp. 3–21. https://doi.org/10.1093/petrology/37.1.3</mixed-citation><mixed-citation xml:lang="en">Zhou M-F., Robinson P.T., Malpas J., Li Z. (1996). Podiform Chromitites in the Luobusa Ophiolite (Southern Tibet): Implications for Melt-Rock Interaction and Chromite Segregation in the Upper Mantle. Journal of Petrology, 37, pp. 3–21. https://doi.org/10.1093/petrology/37.1.3</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>
