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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">sergeogr</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Российской академии наук. Серия географическая</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2587-5566</issn><issn pub-type="epub">2658-6975</issn><publisher><publisher-name></publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31857/S2587556621020151</article-id><article-id custom-type="elpub" pub-id-type="custom">sergeogr-1298</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>Региональные географические проблемы</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Regional Geographical Problems</subject></subj-group></article-categories><title-group><article-title>Первые результаты люминесцентного датирования лёссово-почвенных серий юга Западной Сибири (опорный разрез Ложок)</article-title><trans-title-group xml:lang="en"><trans-title>The First Results of Luminescent Dating of Loess-Paleosol Series in the South of Western Siberia (Lozhok Reference Section)</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>Вольвах</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Volvakh</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск.</p></bio><bio xml:lang="en"><p>Novosibirsk.</p></bio><email xlink:type="simple">volvakh@igm.nsc.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>Курбанов</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurbanov</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</p></bio><email xlink:type="simple">roger.kurbanov@igras.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>Вольвах</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Volvakh</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск.</p></bio><bio xml:lang="en"><p>Novosibirsk.</p></bio><email xlink:type="simple">sizikova@igm.nsc.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>Зыкина</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zykina</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск.</p></bio><bio xml:lang="en"><p>Novosibirsk.</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>Хащевская</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Khashchevskaya</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва.</p></bio><bio xml:lang="en"><p>Moscow.</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Булард</surname><given-names>Я.-П.</given-names></name><name name-style="western" xml:lang="en"><surname>Buylaert</surname><given-names>J.-P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Роскилле.</p></bio><bio xml:lang="en"><p>Roskilde, Riso.</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мюррей</surname><given-names>Э. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Murray</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Орхус.</p></bio><bio xml:lang="en"><p>Aarhus.</p></bio><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт геологии и минералогии им. В.С. Соболева<country>Россия</country></aff><aff xml:lang="en">Sobolev Institute of Geology and Mineralogy<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт географии РАН; Московский государственный университет имени М.В. Ломоносова, географический факультет<country>Россия</country></aff><aff xml:lang="en">Institute of Geography, Russian Academy of Sciences; Lomonosov Moscow State University, Faculty of Geography<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Институт географии РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Geography, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru">Технический университет Дании<country>Дания</country></aff><aff xml:lang="en">Technical University of Denmark<country>Denmark</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru">Орхусский университет, факультет наук о Земле<country>Дания</country></aff><aff xml:lang="en">Aarhus University, Department of Earth Sciences<country>Denmark</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>09</day><month>06</month><year>2021</year></pub-date><volume>85</volume><issue>2</issue><fpage>284</fpage><lpage>301</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вольвах Н.Е., Курбанов Р.Н., Вольвах А.О., Зыкина В.С., Хащевская Д.Е., Булард Я., Мюррей Э.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Вольвах Н.Е., Курбанов Р.Н., Вольвах А.О., Зыкина В.С., Хащевская Д.Е., Булард Я., Мюррей Э.С.</copyright-holder><copyright-holder xml:lang="en">Volvakh N.E., Kurbanov R.N., Volvakh A.O., Zykina V.S., Khashchevskaya D.E., Buylaert J., Murray A.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://izvestia.igras.ru/jour/article/view/1298">https://izvestia.igras.ru/jour/article/view/1298</self-uri><abstract><p>В статье представлены первые результаты датирования верхне- и среднеплейстоценовых лёссово-почвенных серий Западной Сибири методом оптически-стимулированной люминесценции (ОСЛ). В опорном разрезе Ложок выделено восемь горизонтов, отражающих основные этапы развития природной среды региона, среди которых три палеопочвы, ранее соотносившиеся в хроностратиграфической схеме Западной Сибири с этапами потеплений МИС 3 и МИС 5. Получена хронология по 15 новым ОСЛ-датам. Датирование выполнено по современной методике с анализом накопленной дозы и возраста по трем сигналам (ОСЛ, IRSL50, pIRIR290). Высокая сходимость результатов измерений по протоколам pIRIR290/Q и IR50/Q указывает на достаточную засветку зерен полевого шпата и кварца. В соответствии с принятыми в люминесцентном датировании стандартами, полученная серия дат является достоверной, а итоговая хронология — надежной. По результатам датирования определен возраст формирования всех стратиграфических горизонтов. Анализ лёссово-почвенной последовательности верхнего плейстоцена, основанный на люминесцентной хронологии разреза Ложок, показал несовпадение с лёссово-почвенной последовательностью, разработанной на основе детального изучения и прослеживания горизонтов ископаемых почв и лёссов в наиболее полных субаэральных разрезах Западной Сибири. В разрезе выделяется наличие эрозионной границы, продолжительность перерыва в осадконакоплении составила около 95 тыс. лет. Верхний педокомплекс охарактеризован возрастом 123 ± 11 тыс. лет и соответствует МИС 5, а нижний имеет возраст 196—216 тыс. лет и соотносится нами с МИС 7. Анализ условий осадконакопления указывает на резкое увеличение скоростей накопления лёссов в МИС 2, а различие в содержании радионуклидов 226Ra, 232Th и 40K отражает смену в источнике материала и возможную перестройку региональной розы ветров. Авторы считают, что полученные результаты на данном этапе имеют дискуссионный характер и требуют дополнительных исследований.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the first results on luminescence dating of the Upper Pleistocene deposits of the loesssoil series in Western Siberia. In the key section Lozhok, eight horizons were identified, reflecting the main stages of the development of the environment of the region, including three paleosols, previously correlated in the chronostratigraphic scheme of Western Siberia with the stages of warming MIS 3 and MIS 5. The chronology was obtained from 15 new optically stimulated luminescence (OSL) dates. The dating was carried out according to a modern technique with the analysis of the accumulated dose and age using three signals (OSL, IRSL50, pIRIR290). The high convergence of the results of measurements according to the pIRIR290/Q and IR50/Q protocols indicates a sufficient bleaching of the feldspar and quartz grains. In accordance with the standards accepted in luminescent dating, the obtained series of dates is reliable, and then the resulting chronology is considered as reliable. Based on the dating results, the age of formation of all stratigraphic horizons was determined. Analysis of the loess-soil sequence of the Upper Pleistocene, based on the luminescence chronology of the Lozhok section, showed a discrepancy with the loess-soil sequence developed based on a detailed study and tracing of horizons of buried soils and loesses in the most complete subaerial sections of Western Siberia. In the section, the presence of an erosion boundary is highlighted; the duration of the hiatus in sedimentation was about 95 thousand years. The upper pedocomplex is characterized by an age of 123± 11 thousand years and corresponds to MIS 5, and the lower one is 196-216 thousand years old and correlates with MIS 7. Analysis of sedimentation conditions indicates a sharp increase in the rates of loess accumulation in MIS 2, and the difference in the content radionuclides 226Ra, 232Th, and 40K reflect a change in the source of the material and a possible rearrangement of the regional wind rose. The authors believe that the results obtained at this stage are controversial and require additional research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лёсс</kwd><kwd>лёссово-почвенная последовательность</kwd><kwd>поздний плейстоцен</kwd><kwd>Западная Сибирь</kwd><kwd>стратиграфия</kwd><kwd>ОСЛ-датирование</kwd><kwd>кварц</kwd><kwd>полевой шпат</kwd><kwd>палеопочвы</kwd><kwd>стратиграфия четвертичного периода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>loess-paleosol sequence</kwd><kwd>Pleistocene</kwd><kwd>Western Siberia</kwd><kwd>stratigraphy</kwd><kwd>OSL dating</kwd><kwd>quartz</kwd><kwd>feldspar</kwd><kwd>paleosols</kwd><kwd>Quaternary stratigraphy</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено при финансовой поддержке проектов РФФИ №№ 19-35-50058 мол_нр, 1845-543007 р_мол_а, 19-35-00040 Аспиранты и 19-0500513 А; по теме ГЗ № АААА-А16-116032810080-2 и государственного задания ИГМ СО РАН при поддержке Министерства науки и высшего образования Российской Федерации. 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