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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">geomorf</journal-id><journal-title-group><journal-title xml:lang="ru">Геоморфология и палеогеография</journal-title><trans-title-group xml:lang="en"><trans-title>Geomorfologiya i Paleogeografiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-1789</issn><issn pub-type="epub">2949-1797</issn><publisher><publisher-name></publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31857/S2949178925030106</article-id><article-id custom-type="elpub" pub-id-type="custom">geomorf-3642</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>Геоархеология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Geoarchaeology</subject></subj-group></article-categories><title-group><article-title>Строение и условия формирования отложений нового многослойного геоархеологического местонахождения Китойский Мост (верхний палеолит, Предбайкалье)</article-title><trans-title-group xml:lang="en"><trans-title>Structure and conditions for the formation of the sediments section of new multilayer Geoarchaeological Site Kitoi Most (Late Upper Paleolithic, Cis-Baikal)</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>Щетников</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchetnikov</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">shch@crust.irk.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>Казанский</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazansky</surname><given-names>A. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матасова</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Matasova</surname><given-names>G. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>V. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филинов</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Filinov</surname><given-names>I. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бердникова</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Berdnikova</surname><given-names>N. E.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бердников</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Berdnikov</surname><given-names>I. M.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Липнина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lipnina</surname><given-names>E. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт земной коры СО РАН, Иркутск&#13;
Институт геохимии имени А.П. Виноградова СО РАН, Иркутск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of the Earth's Crust SB RAS, Irkutsk&#13;
Institute of Geochemistry SB RAS, Irkutsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Геологический институт РАН, Москва&#13;
Московский государственный университет имени М.В. Ломоносова,  &#13;
географический факультет, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Geological Institute RAS, Moscow&#13;
Lomonosov Moscow State University, Faculty of Geography, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт земной коры СО РАН, Иркутск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of the Earth's Crust SB RAS, Irkutsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Институт геологии и геохронологии докембрия РАН, Санкт-Петербург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Precambrian Geology and Geochronology RAS, St. Petersburg</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Иркутский государственный университет, Иркутск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk State University, Irkutsk</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>07</day><month>12</month><year>2025</year></pub-date><volume>56</volume><issue>3</issue><fpage>507</fpage><lpage>526</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Щетников А.А., Казанский А.Ю., Матасова Г.Г., Иванова В.В., Филинов И.А., Бердникова Н.Е., Бердников И.М., Липнина Е.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Щетников А.А., Казанский А.Ю., Матасова Г.Г., Иванова В.В., Филинов И.А., Бердникова Н.Е., Бердников И.М., Липнина Е.А.</copyright-holder><copyright-holder xml:lang="en">Shchetnikov A.A., Kazansky A.Y., Matasova G.G., Ivanova V.V., Filinov I.A., Berdnikova N.E., Berdnikov I.M., Lipnina E.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://geomorphology.igras.ru/jour/article/view/3642">https://geomorphology.igras.ru/jour/article/view/3642</self-uri><abstract><p>В Предбайкалье археологические местонахождения среднего сартана (MIS 2) имеют ограниченное распространение и вызывают повышенный интерес специалистов. Нами был обнаружен новый многослойный геоархеологический объект данного возраста, получивший название Китойский Мост. В настоящей статье представлены результаты комплексных исследований, вмещающих культуросодержащие горизонты отложений местонахождения. Установлено, что весь цикл седиментации происходил при постоянстве питающих провинций, основным источником сноса служили породы юрского осадочного бассейна. На начальном этапе (MIS 5) формирование разреза осуществлялось в аллювиальной обстановке, а впоследствии (MIS 4–1) преимущественно в субаэральных условиях с периодическим проявлением педогенеза и усилением роли делювиальных процессов. Образование магнитных свойств отложений облёссованной толщи разреза соответствует “cибирскому” механизму, который является следствием наложения двух — “китайского”, объясняющего наличие суперпарамагнитных частиц в почвах результатом педогенеза и “аляскинского” (ветрового), обусловливающего различия в магнитной восприимчивости лёссов и ископаемых почв изменением в интенсивности ветровой деятельности. В субаэральных отложениях сартанского (MIS 2) возраста установлено присутствие нивейно-эоловых песков, перекрывающих археологические горизонты и свидетельствующих о периоде глубокой криоаридизации местного климата во второй половине среднего сартана (MIS 2) с проявлением экстремально сильных ветровых воздействий. Данный природный прессинг мог сказаться на формировании системы освоения человеком Байкальского региона и явиться причиной хиатуса в развитии культур территории Верхнего Приангарья, фиксируемого на рубеже палеолита и мезолита ~17–14.7 тыс. кал. л. н.</p></abstract><trans-abstract xml:lang="en"><p>Archaeological sites of the Middle Sartan age are extremely rare within the Cis-Baikal region, and therefore are of a great interest to specialists. Our team discovered a new multi-layered geoarchaeological object of this age, called the Kitoi Most. The paper presents the results of comprehensive studies of the deposits hosting culture-bearing horizons at Kitoi Most. The section has a complete set of regional chronostratigraphic levels of the Upper Pleistocene. Sediments derived from the rocks of the Jurassic sedimentary basin. At the initial stage (MIS 5), the formation of the section occurred in alluvial environment, and subsequently (MIS 4–1) mainly in subaerial conditions with periodic manifestations of pedogenesis and an increased role of colluvial processes. The formation of the magnetic properties of deposits of the loess strata of the section corresponds to the “Siberian” mechanism, which is a superposition of two “Chinese” mechanisms, which explains the presence of superparamagnetic particles in soils as a result of pedogenesis, and the “Alaskan” (wind) mechanism, which causes differences in the magnetic susceptibility of loess and fossil soils by changes in the intensity of wind activity. In the subaerial deposits of the Sartan (MIS 2) age, the presence of nivean-eolian sands was established. These deposits overlap archaeological horizons and correspond to ~17–14.7 ka cal. BP period when sediment genesis was influenced by deep cryoaridization with the manifestation of extremely strong wind. Apparently, this climatic pressure influenced development of the system of human occupation in the region, which is currently expressedin the limited distribution of archaeological objects of this age in the territory of Cis-Baikal.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поздний плейстоцен</kwd><kwd>опорный разрез</kwd><kwd>геоархеология</kwd><kwd>изменения природной среды</kwd><kwd>Байкальский регион</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Late Pleistocene</kwd><kwd>reference section</kwd><kwd>geoarchaeology</kwd><kwd>changes in the natural environment</kwd><kwd>Baikal region</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">Астахов В.И. (2024). Лёссоиды и другие индикаторы северного перигляциала. Геоморфология и палеогеография. Т. 55. № 2. 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