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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">litosphere</journal-id><journal-title-group><journal-title xml:lang="ru">Литосфера</journal-title><trans-title-group xml:lang="en"><trans-title>LITHOSPHERE (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1681-9004</issn><issn pub-type="epub">2500-302X</issn><publisher><publisher-name>A.N. Zavaritsky Institute of Geology and Geochemistry</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24930/1681-9004-2021-21-3-386-408</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-1448</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Энстатитовые нодули в гарцбургитах Южного Урала</article-title><trans-title-group xml:lang="en"><trans-title>Enstatite nodules in the harzburgites of the Southern 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>Кориневский</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Korinevsky</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>456317, г. Миасс, Челябинская обл</p></bio><bio xml:lang="en"><p>Miass, Chelyabinsk oblast 456317 Russia</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт минералогии УрО РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Mineralogy UB RAS<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>08</day><month>07</month><year>2021</year></pub-date><volume>21</volume><issue>3</issue><fpage>386</fpage><lpage>408</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кориневский В.Г., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Кориневский В.Г.</copyright-holder><copyright-holder xml:lang="en">Korinevsky V.G.</copyright-holder><license 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.lithosphere.ru/jour/article/view/1448">https://www.lithosphere.ru/jour/article/view/1448</self-uri><abstract><sec><title>Объекты исследования</title><p>Объекты исследования. В тектонических линзах серпентинитового меланжа среди гранат-биотитовых гнейсов Ильменогорско-Вишневогорского комплекса на Южном Урале в двух пунктах на северном побережье оз. Увильды обнаружены выходы редких пород – нодулярных гарцбургитов. Они слагают крутопадающие тела мощностью около 9 м среди амфиболизированных ортопироксенитов.</p></sec><sec><title>Главные результаты</title><p>Главные результаты. Мелкозернистая серпентинизированная энстатит-оливиновая матрица гарцбургитов заключает в себе многочисленные сферические образования (нодули) диаметром 2–7 см, сложенные сростками крупных кристаллов энстатита с редкими выделениями форстерита. По составу и строению эти сфероиды очень напоминают энстатитовые хондры из каменных метеоритов, отличаясь от них размерами (в десятки раз крупнее).</p></sec><sec><title>Выводы</title><p>Выводы. Подобные структуры в гипербазитах очень редки и встречаются в малоизмененных разновидностях. По микроструктурным особенностям и взаимоотношениям главных минералов сделан вывод об их кристаллизации из магматического расплава</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Research subject</title><p>Research subject. At two points on the northern shore of Lake Uvil’dy in the Southern Urals, two outcrops of unique rocks – nodular harzburgites – were discovered in the tectonic lenses of serpentinite melange among garnet-biotite gneisses of the Ilmenogorsko-Vishnevogorsky Сomplex. These outcrops form a body of about 9 m in thickness among amphibolized orthopyroxenites.</p></sec><sec><title>Results</title><p>Results. The fine-grained serpentinized enstatite-olivine matrix of the harzburgites under study contains numerous spherical formations (nodules) 2–7 cm in diameter, composed of large enstatite crystals and rare forsterite grains. The composition and structure of these spheroids are highly similar to the enstatite chondrules from stony meteorites, although differing in size (ten times larger).</p></sec><sec><title>Conclusions</title><p>Conclusions. Such structures are very rare in hyperbasites and occur in slightly altered varieties. Judging by the microstructural features and relationships of the main minerals, it is concluded that these minerals were crystallized from a magmatic melt.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>гарцбургиты</kwd><kwd>энстатитовые нодули</kwd><kwd>Южный Урал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>harzburgites</kwd><kwd>enstatite nodules</kwd><kwd>the Southern Urals</kwd><kwd>Russia</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Белый В.Ф., Гельман М.Л. (1983) Ультраосновные изверженные породы в юго-западной части Корякского нагорья. 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