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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">10.24930/2500-302X-2025-25-3-619-632</article-id><article-id custom-type="edn" pub-id-type="custom">FORYQE</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-2314</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>Золотосульфидно-кварцевое рудопроявление Булан Макаровского рудного узла (Западный Саян, Россия): минералого-геохимические особенности, PT условия образования и источники флюидов</article-title><trans-title-group xml:lang="en"><trans-title>Bulan gold-sulfide-quartz ore deposit of the Makarovsky ore cluster (Western Sayan, Russia): Mineralogical and geochemical features, formation conditions, and fluid sources</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>Анкушева</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ankusheva</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>456317, г. Миасс, Ильменский заповедник</p></bio><bio xml:lang="en"><p>Ilmensky Reserve, Miass, Chelyabinsk Region 456317</p></bio><email xlink:type="simple">ankusheva@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>Кужугет</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzhuget</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Интернациональная, 117а, 667007, г. Кызыл</p></bio><bio xml:lang="en"><p>117a Internatsionalnaya st., Kyzyl 667007</p></bio><email xlink:type="simple">rkuzhuget@mail.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>Баланай</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Balanay</surname><given-names>М. М.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Интернациональная, 117а, 667007, г. Кызыл</p></bio><bio xml:lang="en"><p>117a Internatsionalnaya st., Kyzyl 667007</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ЮУ ФНЦ МиГ УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>SU FRC MG UB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Тувинский институт комплексного освоения природных ресурсов СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tuvinian Institute for Exploration of Natural Resources, SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>07</month><year>2025</year></pub-date><volume>25</volume><issue>3</issue><fpage>619</fpage><lpage>632</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Анкушева Н.Н., Кужугет Р.В., Баланай М.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Анкушева Н.Н., Кужугет Р.В., Баланай М.М.</copyright-holder><copyright-holder xml:lang="en">Ankusheva N.N., Kuzhuget R.V., Balanay М.М.</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.lithosphere.ru/jour/article/view/2314">https://www.lithosphere.ru/jour/article/view/2314</self-uri><abstract><sec><title>Объект исследований</title><p>Объект исследований. Минералого-геохимические особенности и термобарогеохимические условия образования золотосульфидно-кварцевого рудопроявления Булан Макаровского рудного узла в отрогах Западного Саяна.</p></sec><sec><title>Методы</title><p>Методы. С помощью термокамеры Linkam TMS-600 и оптического микроскопа Olympus BX 51 оценены температуры, солевой состав и концентрации солей по включениям минералообразующего флюида в кварце золотосульфидно-кварцевых жил (ЮУрГУ, г. Миасс, аналитик Н.Н. Анкушева). Химический состав золота определен методом сканирующей электронной микроскопии Hitachi ТМ-1000 (ТувИКОПР СО РАН, г. Кызыл, аналитик Р.В. Кужугет).</p></sec><sec><title>Результаты</title><p>Результаты. Минералого-геохимическими исследованиями установлено, что в золотосульфидно-кварцевых жилах рудопроявления Булан золото и электрум отлагались с пиритом, халькопиритом, арсенопиритом, пирротином и редкими выделениями галенита, блеклой руды, золота и электрума. Результаты изучения условий образования золотосульфидно-кварцевых жил показали, что они отлагались в температурном диапазоне 170–230 °C из слабо- и умеренно соленого (3.5–6.8 мас. % NaCl экв.) магматогенного флюида комплексного K-Na-Mg±Fe-хлоридного состава. Устойчивый интервал солености флюидов, а также узкий диапазон δ18O указывают на единый магматогенный источник и незначительное влияние вмещающих пород и метеорных вод. Выводы. Рудопроявление Булан по минералого-геохимическим особенностям и условиям образованиям сходно с малосульфидными месторождениями золотосульфидно-кварцевой березит-лиственитовой формации.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Research subject</title><p>Research subject. Mineralogical and geochemical features and formation conditions of the Bulan gold-sulfide-quartz ore occurrence of the Makarov ore cluster in the Western Sayan.</p></sec><sec><title>Methods</title><p>Methods. A Linkam TMS-600 thermostage and Olympus BX 51 optical microscope were used to determine temperatures, compositions, and fluid salinities in inclusions of mineral- forming fluid in quartz of gold-sulfide-quartz veins (SUSU, Miass, analyst Natalia N. Ankusheva). The chemical composition of gold was determined by SEM Hitachi TM-1000 (TuvIENR SB RAS, Kyzyl, analyst Renat V. Kuzhuget).</p></sec><sec><title>Results</title><p>Results. The conducted mineralogical and geochemical studies determined that gold formation at the Bulan ore field was single-stage in the form of gold-sulfide-quartz veins and veins with pyrite, chalcopyrite, arsenopyrite, pyrrhotite, as well as rare isolations of galena, fahlore, gold, and electrum. The results of fluid inclusion study from gold-sulfide-quartz veins showed that they were formed in the temperature range 170–230°C due to a weakly to moderately saline (3.5–6.8 wt % NaCl eq.) magmatic fluid of the K-Na-Mg±Fe-chloride composition. The stable range of fluid salinity and the narrow range of δ18O indicate a single magmatic source and insignificant influence of host rocks and meteoric waters. Conclusions. According to mineralogical and geochemical features and PT parameters, the Bulan ore occurrence is similar to low-sulfide deposits of gold-sulfide-quartz berezite-listvenite formation.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>флюидные включения</kwd><kwd>самородное золото</kwd><kwd>золотосульфидно-кварцевое рудопроявление</kwd><kwd>кварц</kwd><kwd>стабильные изотопы</kwd><kwd>Тува</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluid inclusions</kwd><kwd>native gold</kwd><kwd>gold-sulfide-quartz ore occurrence</kwd><kwd>quartz</kwd><kwd>stable isotopes</kwd><kwd>Tuva</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Полевые и минералого-геохимические исследования выполнены в рамках государственного задания ТувИКОПР СО РАН, термобарогеохимические исследования проведены по госзаданию ЮУ ФНЦ МиГ УрО РАН.</funding-statement><funding-statement xml:lang="en">Fieldworks and mineralogical vs geochemical study were carried out in accordance with the State Contract of TuvIENIR SB RAS; fluid inclusion study was supported by the State Contract of SU FRC MG UB RAS.</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">Артемьев Д.С. 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