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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">gtcrust</journal-id><journal-title-group><journal-title xml:lang="ru">Геодинамика и тектонофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Geodynamics &amp; Tectonophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2078-502X</issn><publisher><publisher-name>Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5800/GT-2016-7-1-0199</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-225</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>ПАЛЕОГЕОДИНАМИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PALEOGEODYNAMICS</subject></subj-group></article-categories><title-group><article-title>ЧАРОИТ. ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>CHAROITE. EXPERIMENTAL STUDIES</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>Марчук</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchuk</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. геол.-мин. наук, м.н.с.</p></bio><bio xml:lang="en"><p>Candidate of Geology and Mineralogy, Junior Researcher</p></bio><email xlink:type="simple">marin@crust.irk.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>Медведев</surname><given-names>В. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedev</surname><given-names>V. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. геол.-мин. наук, с.н.с.</p></bio><bio xml:lang="en"><p>Candidate of Geology and Mineralogy, Senior Researcher</p></bio><email xlink:type="simple">med@crust.irk.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>Иванова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. геол.-мин. наук, с.н.с.</p></bio><bio xml:lang="en"><p>Candidate of Geology and Mineralogy, Senior Researcher</p></bio><email xlink:type="simple">liva@crust.irk.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>Соколова</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolova</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. геол.-мин. наук, н.с.</p></bio><bio xml:lang="en"><p>Candidate of Geology and Mineralogy, Researcher</p></bio><email xlink:type="simple">sokolovats@crust.irk.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>Данилов</surname><given-names>Б. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>B. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. геол.-мин. наук, н.с.</p></bio><bio xml:lang="en"><p>Candidate of Geology and Mineralogy, Researcher</p></bio><email xlink:type="simple">boris@crust.irk.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>Гладкочуб</surname><given-names>Д. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Gladkochub</surname><given-names>D. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докт. геол.-мин. наук, профессор РАН, директор института</p></bio><bio xml:lang="en"><p>Doctor of Geology and Mineralogy, Professor of RAS, Director of the Institute</p></bio><email xlink:type="simple">dima@crust.irk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт земной коры СО РАН, 664033, Иркутск, ул. Лермонтова, 128, Россия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of the Earth’s Crust, Siberian Branch of RAS, 128 Lermontov street, Irkutsk 664033, Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>21</day><month>03</month><year>2016</year></pub-date><volume>7</volume><issue>1</issue><fpage>105</fpage><lpage>118</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Марчук М.В., Медведев В.Я., Иванова Л.А., Соколова Т.С., Данилов Б.С., Гладкочуб Д.П., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Марчук М.В., Медведев В.Я., Иванова Л.А., Соколова Т.С., Данилов Б.С., Гладкочуб Д.П.</copyright-holder><copyright-holder xml:lang="en">Marchuk M.V., Medvedev V.Y., Ivanova L.A., Sokolova T.S., Danilov B.S., Gladkochub D.P.</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.gt-crust.ru/jour/article/view/225">https://www.gt-crust.ru/jour/article/view/225</self-uri><abstract><p>Приведен обзор экспериментальных исследований чароита в России и в мире. Рассмотрены гипотезы формирования чароитовых пород. Для выяснения характера взаимодействия чароитового субстрата с вмещающими породами и исследования процессов преобразования чароита при повышенных температурах проведен ряд экспериментов. Кроме того, изучены возможности повышения сортности некондиционных чароититов. При экспериментальном исследовании контактового взаимодействия чароитового субстрата с лампрофиром микроклин-арфведсонитового состава установлено образование реакционных полиминеральных зон. Исследование новообразованных фаз позволило изучить распределение элементов по фазам и получить их составы. Показано, что при термическом разложении чароита происходит его преобразование в волластонит, количество которого увеличивается с ростом температуры от 800 до 1000 °С, при нагревании выше 1200 °С образуется псевдоволластонит. Согласно проведенному физико-химическому моделированию разложения чароита, из различных составов минерала при заданных температурах и давлении образуется следующий парагенезис: кварц, волластонит, щелочной пироксен (эгирин), микроклин, родонит и сфен.Проведенные эксперименты подчеркивают низкотемпературный характер чароитообразования и показывают отсутствие силикатного расплава в исследованных системах. Результаты расчетов согласуются с проведенными экспериментами по взаимодействию чароита с вмещающими породами и его отжигу и позволяют определить возможные сосуществующие с волластонитом фазы.Исследования по улучшению декоративно-художественных свойств чароититов методом окрашивания показали, что для получения окраски чароититов, близкой к окраске высокосортных природных образцов, требуется выдержка образцов в растворе активного ярко-фиолетового красителя 4КТ при длительности 72 ч и температуре 70–90 °C.</p></abstract><trans-abstract xml:lang="en"><p>The article provides an overview of experimental studies of charoite and charoite-containing rock formation hypotheses. The authors conducted experiments to clarify charoite and host rocks interaction and study charoite transformation processes at high temperatures. A series of experiments was aimed at improving the substandard charoite samples. The experiments show the formation of polymineral reaction zones due to the contact interaction between charoite and microcline-arfvedsonite lamprophyre. By studying the newly formed phases, the authors reveal the distribution of elements by phases and establish their compositions. It is shown that thermal decomposition of charoite leads to the formation of wollastonite, which amount increases with the temperature increase from 800 to 1000 °C, and heating above 1200 °C leads to the formation of pseudowollastonite. The physicochemical simulation of charoite decomposition under the specified temperatures and pressure shows the following paragenesis: quartz, wollastonite, alkaline pyroxene (aegerine), microcline, rhodonite, and sphene.</p><p>The experiments prove the formation of charoite at low temperatures and the lack of silicate melt in the systems studied. The calculated values are consistent with the results of experiments conducted to study the charoite and host rocks interaction, which allows identifying phases potentially co-existing with wollastonite.</p><p>Special studies using by the coloring technique were conducted to improve the decorative properties of charoite. The color close to natural high-grade charoite coloration was achieved by keeping the rock samples in the active bright purple dye 4KT solution for 72 hours at a temperature of 70 to 90 °C.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>чароит</kwd><kwd>Мурунский щелочной массив</kwd><kwd>эксперимент</kwd><kwd>флюидные системы</kwd><kwd>физикохимическое моделирование</kwd><kwd>облагораживание</kwd></kwd-group><kwd-group xml:lang="en"><kwd>charoite</kwd><kwd>Murun alkaline massif</kwd><kwd>experiment</kwd><kwd>fluid systems</kwd><kwd>physicochemical simulation</kwd><kwd>treatment</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">Aleksandrova A.Yu, Ivanova L.A., 2015. Refining of ornamental charoite. Proceedings of Siberian Branch, Earth Sciences Section, the Russian Academy of Natural Sciences. 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