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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">nznistu</journal-id><journal-title-group><journal-title xml:lang="ru">Науки о Земле и недропользование</journal-title><trans-title-group xml:lang="en"><trans-title>Earth sciences and subsoil use</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9993</issn><issn pub-type="epub">2686-7931</issn><publisher><publisher-name>Federal State Budget Educational Institution of Higher Education "Irkutsk National Research Technical University"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2541-9455-2018-41-2-41-53</article-id><article-id custom-type="elpub" pub-id-type="custom">nznistu-16</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, поиски и разведка месторождений полезных ископаемых</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Geology, Prospecting and Exploration of Mineral Deposits</subject></subj-group></article-categories><title-group><article-title>РЕЗУЛЬТАТЫ ИЗОТОПНОГО ИЗУЧЕНИЯ ЭПИТЕРМАЛЬНЫХ ФЛЮОРИТОВЫХ МЕСТОРОЖДЕНИЙ ЗАПАДНОГО ЗАБАЙКАЛЬЯ (ИСТОЧНИКИ ВЕЩЕСТВА И ФЛЮИДОВ)</article-title><trans-title-group xml:lang="en"><trans-title>RESULTS OF ISOTOPIC STUDY OF EPITHERMAL FLUORITE DEPOSITS OF WESTERN TRANSBAIKALIA (SOURCES OF MATTER AND FLUIDS)</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>Ласточкин</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lastochkin</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат геолого-минералогических наук, научный сотрудник</p><p>тел.: 8 (3012) 43327</p><p>670047, Российская Федерация, Республика Бурятия, г. Улан-Удэ, ул. Сахьяновой, 6а</p></bio><bio xml:lang="en"><p>Candidate of Geological and Mineralogical Sciences, Researcher</p><p>tel.: 8 (3012) 433275</p><p>6a Sakhyanova St., Ulan-Ude, Republic of Buryatia, 670047, Russian Federation</p></bio><email xlink:type="simple">gin-buryatia-07@yandex.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>Рипп</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ripp</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат геолого-минералогических наук, ведущий научный сотрудник</p><p>670047, Российская Федерация, Республика Бурятия, г. Улан-Удэ, ул. Сахьяновой, 6а</p></bio><bio xml:lang="en"><p>Candidate of Geological and Mineralogical Sciences, Leading Researcher</p><p>6a Sakhyanova St., Ulan-Ude, Republic of Buryatia, 670047, Russian Federation</p></bio><email xlink:type="simple">ripp@gin.bscnet.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>Цыденова</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsydenova</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p><p>670047, Российская Федерация, Республика Бурятия, г. Улан-Удэ, ул. Сахьяновой, 6а</p></bio><bio xml:lang="en"><p>Postgraduate student</p><p>6a Sakhyanova St., Ulan-Ude, Republic of Buryatia, 670047, Russian Federation</p></bio><email xlink:type="simple">noemail@neicon.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>Посохов</surname><given-names>В. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Posokhov</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>научный сотрудник</p><p>670047, Российская Федерация, Республика Бурятия, г. Улан-Удэ, ул. Сахьяновой, 6а</p></bio><bio xml:lang="en"><p>Researcher</p><p>6a Sakhyanova St., Ulan-Ude, Republic of Buryatia, 670047, Russian Federation</p></bio><email xlink:type="simple">vitaf1@yandex.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>Мурзинцева</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Murzintseva</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>инженер</p><p>670047, Российская Федерация, Республика Бурятия, г. Улан-Удэ, ул. Сахьяновой, 8</p></bio><bio xml:lang="en"><p>Engineer</p><p>8 Sakhyanova St., Ulan-Ude, Republic of Buryatia, 670047, Russian Federation</p></bio><email xlink:type="simple">muzeybsc@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Геологический институт СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Geological Institute SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Бурятский научный центр СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Buryat Scientific Center SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>08</day><month>09</month><year>2020</year></pub-date><volume>41</volume><issue>2</issue><fpage>41</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ласточкин Е.И., Рипп Г.С., Цыденова Д.С., Посохов В.Ф., Мурзинцева А.Е., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ласточкин Е.И., Рипп Г.С., Цыденова Д.С., Посохов В.Ф., Мурзинцева А.Е.</copyright-holder><copyright-holder xml:lang="en">Lastochkin E., Ripp G., Tsydenova D., Posokhov V., Murzintseva 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.nznj.ru/jour/article/view/16">https://www.nznj.ru/jour/article/view/16</self-uri><abstract><p>Цель. Оценка источников флюидов эпитермальных флюоритовых месторождений Западного Забайкалья с помощью анализа изотопного состава кислорода, углерода, водорода и серы. Методы. Изотопные составы кислорода в силикатах, а также углерода в карбонатах определены в Геологическом институте СО РАН В.Ф. Посоховым. Результаты. Изотопный состав кислорода в кварце характеризуется существенной облегченностью (-3,4…+2,6 ‰ δ18O). Сера пиритов этих месторождений также обогащена легким изотопом (-1,8…-7,7 ‰ δ34S). Величина δ34S варьирует от +0,4 до -9,7 ‰ и составляет в среднем -3,75 по семи месторождениям. Выводы. Изотопные исследования свидетельствуют о глубинном источнике серы, претерпевшей изменения в процессе подъема ее от магматического очага к верхним горизонтам. Состав флюида фиксирует участие воды метеорного источника, вызванного процессами рециклинга под действием неглубоко залегающего плутона базитов.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of the publication is to estimate the fluid sources of the epithermal fluorite deposits of the Western Transbaikalia by analyzing the isotope composition of oxygen, carbon, hydrogen and sulfur. Methods. The isotopic compositions of oxygen in silicates as well as carbon in carbonates are determined by V.F. Posokhov in the Geological Institute SB RAS. Results. The isotopic composition of oxygen in quartz is characterized by low δ18O (-3.4 - + 2.6 ‰). Pyritic sulfer of these deposits is also enriched by the light isotope δ34S (from -1.8 to -7.7 ‰ δ34S). The value of δ34S varies from +0.4 to -9.7 ‰ and is -3.75 on the average for seven fields. Conclusions. The isotope studies indicate a deep source of sulfur, which underwent changes in the process of its rise from the magma pocket to the upper horizons. The composition of the fluid is indicative of the participation of water from the meteor source caused by recycling processes under the influence of shallow underlying basite pluton.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флюорит</kwd><kwd>пирит</kwd><kwd>барит</kwd><kwd>кварц</kwd><kwd>изотопия</kwd><kwd>флюид</kwd><kwd>Забайкалье</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fluorite</kwd><kwd>pyrite</kwd><kwd>barite</kwd><kwd>quartz</kwd><kwd>isotopy</kwd><kwd>fluid</kwd><kwd>Transbaikalia</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">Дондоков З.Б.-Д., Потапов Л.В., Кислов Е.В. Минерально-сырьевой комплекс Республики Бурятия: состояние и перспективы // Минеральные ресурсы России. 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