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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Доклады Академии наук</journal-id><journal-title-group><journal-title xml:lang="en">Доклады Академии наук</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-5652</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">18875</article-id><article-id pub-id-type="doi">10.31857/S0869-56524896616-620</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Geology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Геология</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Age of Ichinsky and Khangar stratovolcanoes (Sredinny range, Kamchatka)</article-title><trans-title-group xml:lang="ru"><trans-title>Возраст стратовулканов Ичинский и Хангар (Срединный хребет, Камчатка)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pevzner</surname><given-names>M. M.</given-names></name><name xml:lang="ru"><surname>Певзнер</surname><given-names>М. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lebedev</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Лебедев</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Volynets</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Волынец</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kostitsin</surname><given-names>Yu. A.</given-names></name><name xml:lang="ru"><surname>Толстых</surname><given-names>М. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Academician of the RAS</p></bio><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Babansky</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Костицын</surname><given-names>Ю. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Academician of the Russian Academy of Sciences</p></bio><bio xml:lang="ru"><p>Академик РАН</p></bio><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tolstykh</surname><given-names>M. L.</given-names></name><name xml:lang="ru"><surname>Бабанский</surname><given-names>А Д</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>m_pevzner@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Geological Institute of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Геологический институт РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт геологии рудных месторождений, петрографии, минералогии и геохимии РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Volcanology and Seismology, Far Eastern Division of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт вулканологии и сейсмологии ДВО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт геохимии и аналитической химии им. В.И. Вернадского РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-23" publication-format="electronic"><day>23</day><month>12</month><year>2019</year></pub-date><volume>489</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>616</fpage><lpage>620</lpage><history><date date-type="received" iso-8601-date="2019-12-22"><day>22</day><month>12</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-12-22"><day>22</day><month>12</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Russian academy of sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Российская академия наук</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Russian academy of sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-5652/article/view/18875">https://journals.eco-vector.com/0869-5652/article/view/18875</self-uri><abstract xml:lang="en"><p>K-Ar isotopic age of the beginning of formation of Ichinsky (0,35 Ma) and Khangar (0,4 Ma) stratovolcanoes is established for the first time, as well as the age of the final stage of activity of the Lauchan Ridge (about 0,9 Ma) in the Sredinny Range of Kamchatka. Probably the formation of the studied volcanoes may be caused by the generation of the new deep NNE fault within the Sredinny Range of Kamchatka, which in turn was connected to the regional reasons of the increasing endogenous activity at the North-West Pacific.</p></abstract><trans-abstract xml:lang="ru"><p>Впервые установлен изотопный K–Ar-возраст начала формирования стратовулканов Ичинский (0,35 млн лет) и Хангар (0,4 млн лет), а также возраст финальных эффузивов хребта Лаучан (около 0,9 млн лет) в Срединном хребте Камчатки. Вероятно, возникновение изученных стратовулканов могло быть связано с заложением в Срединном хребте Камчатки нового глубинного разлома ССВ‑простирания, что было обусловлено региональными причинами усиления эндогенной активности Северо-Западной Пацифики.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Ichinsky</kwd><kwd>Khangar</kwd><kwd>Lauchan</kwd><kwd>Sredinny Range of Kamchatka</kwd><kwd>volcanism, K-Ar dating</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Ичинский</kwd><kwd>Хангар</kwd><kwd>Лаучан</kwd><kwd>Срединный хребет Камчатки</kwd><kwd>вулканизм</kwd><kwd>K–Ar-датирование</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was carried out in accordance with the State Assignments on the themes of the GIN RAS No. 0135–2019–0059, IViS FEB RAS No. 0282–2018–0008, GEOCH RAS No. 0137–2018–0005, IGEM RAS No. 0136–2018–0028 and with financial support from the RFBR projects No. 17–05–00112 and 18–05–00224.</funding-statement><funding-statement xml:lang="ru">Работа выполнена в соответствии с Госзаданиями по темам ГИН РАН № 0135–2019–0059, ИВиС ДВО РАН № 0282–2018–0008, ГЕОХИ РАН № 0137–2018–0005, ИГЕМ РАН № 0136–2018–0028 и при финансовой поддержке проектов РФФИ № 17–05–00112 и 18–05–00224.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Базанова Л.И., Певзнер М.М. // ДАН. 2001. 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