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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">aari</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Арктики и Антарктики</journal-title><trans-title-group xml:lang="en"><trans-title>Arctic and Antarctic Research</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0555-2648</issn><issn pub-type="epub">2618-6713</issn><publisher><publisher-name>Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30758/0555-2648-2025-71-1-74-86</article-id><article-id custom-type="elpub" pub-id-type="custom">aari-690</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 И ГЕОФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GEOLOGY AND GEOPHYSICS</subject></subj-group></article-categories><title-group><article-title>Натурное моделирование георадиолокационного зондирования дна р. Колымы для поиска костных остатков животных мамонтовой фауны</article-title><trans-title-group xml:lang="en"><trans-title>Full-scale modelling of GPR sounding of Kolyma River bottom in searching for bone remains of mammoth fauna animals</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6142-0103</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горохов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorokhov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якутск</p></bio><bio xml:lang="en"><p>Ivan V. Gorokhov.</p><p>Yakutsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2478-4172</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Христофоров</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Khristoforov</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якутск</p></bio><bio xml:lang="en"><p>Ivan I. Khristoforov.</p><p>Yakutsk</p></bio><email xlink:type="simple">khristoforov@mpi.ysn.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3558-9655</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилов</surname><given-names>К. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>K. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якутск</p></bio><bio xml:lang="en"><p>Kencheri P. Danilov.</p><p>Yakutsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2091-725X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петухова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petukhova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Якутск</p></bio><bio xml:lang="en"><p>Evgenia S. Petukhova.</p><p>Yakutsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН ФИЦ «Якутский научный центр СО РАН»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FRC “The Yakut Scientific Centre of the SB RAS”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУН ФИЦ «Якутский научный центр СО РАН»; Институт мерзлотоведения им. П.И. Мельникова СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FRC “The Yakut Scientific Centre of the SB RAS”; Melnikov permafrost institute SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2025</year></pub-date><volume>71</volume><issue>1</issue><fpage>74</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горохов И.В., Христофоров И.И., Данилов К.П., Петухова Е.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Горохов И.В., Христофоров И.И., Данилов К.П., Петухова Е.С.</copyright-holder><copyright-holder xml:lang="en">Gorokhov I.V., Khristoforov I.I., Danilov K.P., Petukhova E.S.</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.aaresearch.science/jour/article/view/690">https://www.aaresearch.science/jour/article/view/690</self-uri><abstract><p>Исследования, описанные в данной работе, направлены на развитие георадиолокационного метода для поиска подводных местонахождений бивней мамонта. Затронута актуальность данного биогенного ресурса, а также выделены проблемы, связанные с его освоением. Геофизические работы выполнены в Арктической зоне Республики Саха (Якутия), на участке среднего течения реки Колымы в осенний период. Исследования проведены георадарной аппаратурой ОКО-3 с антенным блоком с частотой 150 МГц. Представлены результаты площадной георадиолокационной съемки в виде карты глубин и георадарных разрезов. Проанализирована эффективность применения метода георадиолокации при поисковых работах на местонахождениях подводных скоплений бивней мамонта. Предложены методические рекомендации внедрения метода георадиолокации в поисковые работы.</p></abstract><trans-abstract xml:lang="en"><p>The fossil mammoth tusk is a unique biogenic material, which is widely used for the production of souvenirs and luxury goods. The burial of mammoth fauna animal’s remains in permafrost ensured high preservation. Due to the complete ban on hunting African and Asian elephants introduced in 1990 by UNESCO, the demand for fossil ivory has increased. Today, up to 80 % of mammoth bone deposits is harvested in the Republic of Sakha (Yakutia), Russia. The paper describes some traditional techniques of mammoth tusk mining and proves the efficiency of the GPR (ground penetrating radar) for prospecting underwater accumulations of fossil mammoth bone. The aim of the survey was increasing the efficiency of the GPR sounding technique for the detection of mammoth bone under water. The comprehensive GPR area survey was used to identify areas promising to contain underwater accumulations of fossil mammoth bone. Because the release of bone material from productive layers is caused by river erosion and thermal erosion processes a meandering section of the Kolyma River was selected for the research. Thermal erosion plays a more prominent role in the release of bone material in the headwaters of small watercourses, in deltas, and in the bottoms of incipient gullies. Fossil mammoth bones are usually found on riverbanks (low floodplain, channel spits) — in areas where the river erodes the slopes of remnants composed of edomorphic complex formations or in close proximity to them. The GPR application makes it possible to study the bottom relief in detail and thus can identify areas promising in terms of the formation of secondary accumulations of mammoth bones. The key features of bone remain accumulations have been identified: natural depressions or obstacles that mammoth bone can get caught on when sinking to the bottom of the water body; accumulation of the heaviest fragments in the deepest depressions at the bottom of the water body; accumulation of smaller fragments on sedimentary shoals. An algorithm for the GPR surveying of water bodies promising in terms of mammoth bone detection has been developed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Арктика</kwd><kwd>бивни мамонта</kwd><kwd>георадиолокационное зондирование</kwd><kwd>донные отложения</kwd><kwd>криолитозона</kwd><kwd>местонахождения ископаемой мамонтовой кости</kwd><kwd>река Колыма</kwd><kwd>Республика Саха (Якутия)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Arctic</kwd><kwd>bottom sediments</kwd><kwd>cryolithozone</kwd><kwd>GPR sounding</kwd><kwd>Kolyma River</kwd><kwd>locations of fossil mammoth bones</kwd><kwd>mammoth tusks</kwd><kwd>Republic of Sakha (Yakutia)</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования РФ НИОКТР № 122042000008-5. Выражаем благодарность ЦКП ФИЦ ЯНЦ СО РАН за возможность проведения исследований на научном оборудовании Центра.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation NIOKTR № 122042000008-5. We express our gratitude to the Collective Use Center of the FRC Yakut Scientific Center of the Siberian Branch of the Russian Academy of Sciences for the opportunity to conduct research using the research equipment of the Center.</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">Смирнов А.Н. Ресурсный потенциал ископаемой мамонтовой кости в Российской Арктике. Минеральные ресурсы России. Экономика и управление. 2007;4:21–29.</mixed-citation><mixed-citation xml:lang="en">Smirnov A.N. 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