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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">10.24930/1681-9004-2020-20-3-411-431</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-1300</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>U-Pb (ID-TIMS) геохронологический метод и SIMS приемы датирования циркона “in situ”: возможности и ограничения</article-title><trans-title-group xml:lang="en"><trans-title>U-Pb (ID-TIMS) geochronological method and “in-situ” SIMS zircon dating: possibilities and constrains</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>Ронкин</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Ronkin</surname><given-names>Yu. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>620016, г. Екатеринбург, ул. Акад. Вонсовского, 15</p></bio><bio xml:lang="en"><p>15 Akad. Vonsovsky st., Ekaterinburg 620016, Russia</p></bio><email xlink:type="simple">y-ronkin@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>Маслов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Maslov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>620016, г. Екатеринбург, ул. Акад. Вонсовского, 15</p></bio><bio xml:lang="en"><p>15 Akad. Vonsovsky st., Ekaterinburg 620016, Russia</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Синдерн</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sindern</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>52062, г. Аахен, Германия</p></bio><bio xml:lang="en"><p>Aachen 52062, Germany</p></bio><email xlink:type="simple">sindern@iml.rwth-aachen.de</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт геологии и геохимии УрО РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Geology and Geochemistry urals Branch of RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт минералогии и экономической геологии RWTh Университета<country>Германия</country></aff><aff xml:lang="en">Institute of Mineralogy and Economic Geology, RWTh university<country>Germany</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>06</day><month>07</month><year>2020</year></pub-date><volume>20</volume><issue>3</issue><fpage>411</fpage><lpage>431</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ронкин Ю.Л., Маслов А.В., Синдерн С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ронкин Ю.Л., Маслов А.В., Синдерн С.</copyright-holder><copyright-holder xml:lang="en">Ronkin Y.L., Maslov A.V., Sindern S.</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/1300">https://www.lithosphere.ru/jour/article/view/1300</self-uri><abstract><p>Объекты и методы исследований. Работа основана на сравнительном изучении авторских и литературных U-Pb ID-TIMS и “in situ” изотопных данных для цирконов, выделенных из ряда геологических объектов Урала (вулканогенных пород машакской свиты Башкирского мегантиклинория, гранитоидных массивов северной части хр. Уралтау, Кумбинского габбро-норитового массива Платиноносного пояса), диоритов Австралии и мафических ксенолитов Южной Африки. </p><sec><title>Результаты</title><p>Результаты. Основы рассматриваемых методов ID-TIMS (ID-MC-ICP/ MS) и SIMS датирования циркона фундаментально различаются, каждому из них присущи свои преимущества и недостатки, что необходимо учитывать при решении соответствующих геохронологических проблем.</p></sec><sec><title>Выводы</title><p>Выводы. U-Pb ID-TIMS (ID-MC-ICP/MS) методы позволяют анализировать единичные кристаллы, а также их фрагменты с беспрецедентно низкой погрешностью определяемого возраста (до 0.05%). Главным недостатком U-Pb SIMS метода является значительная погрешность U-Pb датирования (2–5%), “маскирующая” возможные потери Pb (и/или привнос U), что обусловливает появление артефактов при интерпретации U-Pb цирконовых данных. Это, в свою очередь, приводит к выделению несуществующих этапов магматизма, метаморфизма, ложным представлениям о длительности эволюции изучаемых геологических объектов и т. д. Применение U-Pb SIMS методов должно быть ограничено решением геологических задач, не требующих высокой точности датирования (т. е. допускающих определение возраста оценочного характера), но связанных с  необходимостью изучения большого числа образцов и соответствующего количества зерен циркона. К примеру, таковым является исследование обломочного вещества в целях реконструкции источников и геологических условий формирования осадочных бассейнов. Другими задачами, адекватными возможностям U-Pb SIMS, при решении которых этот метод может использоваться, может служить изучение гетерогенности кристаллов циркона сложного строениея при предварительном отборе материала для последующего  высокоточного датирования U-Pb ID-TIMS и/или ID-MC-ICP/MS способами. Расширение числа лабораторий, применяющих эти высокоточные методы, представляется важнейшим направлением развития отечественной  изотопной геохронологии.  </p></sec></abstract><trans-abstract xml:lang="en"><p>Research subject and methods. The work is based on a comparative study of the data obtained by the authors and those published in literature on U-Pb ID-TIMS and “in-situ” isotopic examination of zircons extracted from a number of Ural geological objects (volcanogenic rocks of the Mashak Formation of the Bashkir Meganticlinorium, granitoid massifs of the Northern part of the Uraltau Ridge, Kumba gabbro-norite massif Platinum-bearing belt), as well as Australian diorites and South African mafic xenoliths. </p><sec><title>Results</title><p>Results. Since the methods of ID-TIMS (ID-MC-ICP/MS) and SIMS dating of zircon are fundamentally different, their advantages and disadvantages should be taken into account when solving the corresponding geochronological problems. </p></sec><sec><title>Conclusions</title><p>Conclusions. U-Pb ID-TIMS (ID-MC-ICP/MS) methods allow the analysis of individual crystals, as well as their fragments, with an unprecedented level of uncertainty concerning age dating (up to 0.05%). The main drawback of the U-Pb SIMS method consists in a significant error when dating U-Pb (2–5%), which might disguise possible Pb losses (and / or U-contribution) and lead to appearance of artifacts when interpreting U-Pb zircon data. This, in turn, leads to the identification of non-existent stages of magmatism, metamorphism, false ideas about the length of evolutionary processes, etc. The use of U-Pb SIMS methods should be limited to solving geological problems that do not require a high accuracy of dating (i.e., allowing rough estimation) but involving the need to study a large number of samples and corresponding zircon grains. Such problems arise during examination of clastic material in the process of reconstructing sources and geological conditions of sedimentary basin formation. U-Pb SIMS methods can be used for studying the heterogeneity of zircon crystals having a complex structure under preliminary selection of materials for subsequent high-precision dating using U-Pb ID-TIMS and / or ID-MC-ICP/MS methods. The expansion of the number of laboratories using these high-precision methods seems to be the most important direction in the development of Russian isotope geochronology. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>u-Pb ID-TIMS и SIMS методы датирования циркона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>u-Pb ID-TIMS</kwd><kwd>SIMS</kwd><kwd>zircon dating</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследования выполнены в рамках темы № АААА-А18-118053090044-1 государственного задания ИГГ УрО РАН</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">Алексеев А.А. 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