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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">gtcrust</journal-id><journal-title-group><journal-title xml:lang="ru">Геодинамика и тектонофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Geodynamics &amp; Tectonophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2078-502X</issn><publisher><publisher-name>Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5800/GT-2018-9-4-0390</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-673</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>СОВРЕМЕННАЯ ГЕОДИНАМИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RECENT GEODYNAMICS</subject></subj-group></article-categories><title-group><article-title>ОЦЕНКА ВОЗМОЖНОСТЕЙ ГЕОРАДИОЛОКАЦИИ ПРИ ИЗУЧЕНИИ СЕЙСМОГЕННЫХ НАРУШЕНИЙ И ДЕФОРМАЦИЙ В ДОННЫХ ОСАДКАХ (НА ПРИМЕРЕ ОЗЕРА УПОЛОКШСКОЕ, СЕВЕРО-ВОСТОК ФЕННОСКАНДИНАВСКОГО ЩИТА)</article-title><trans-title-group xml:lang="en"><trans-title>EVALUATION OF GPR CAPABILITIES IN THE STUDY OF SEISMOGENIC FAULTING AND DEFORMATION IN THE BOTTOM SEDIMENTS OF LAKE UPOLOKSHA (NORTHEAST OF THE FENNOSCANDIAN SHIELD)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1006-051X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Родионов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Rodionov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Игоревич Родионов - аспирант, младший научный сотрудник.</p><p>185910, Петрозаводск, ул. Пушкинская, 11</p></bio><bio xml:lang="en"><p>Aleksander I. Rodionov - Post-Graduate Student, Junior Researcher.</p><p>11 Pushkinskaya street, Petrozavodsk 185910</p></bio><email xlink:type="simple">fabian4695@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6658-0496</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаева</surname><given-names>С. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaeva</surname><given-names>S. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлана Борисовна Николаева - кандидат геолого-миралогических наук, старший научный сотрудник.</p><p>184209, Апатиты, ул. Ферсмана, 14</p></bio><bio xml:lang="en"><p>Svetlana B. Nikolaeva - Candidate of Geology and Mineralogy, Senior Researcher.</p><p>14 FersmanStreet, Apatity 184209</p></bio><email xlink:type="simple">nikolaeva@geoksc.apatity.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/0000-0002-1944-9479</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рязанцев</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryazantsev</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Александрович Рязанцев - кандидат геолого-миралогических наук, старший научный сотрудник.</p><p>185910, Петрозаводск, ул. Пушкинская, 11</p></bio><bio xml:lang="en"><p>Pavel A. Ryazantsev - Candidate of Geology and Mineralogy, Senior Researcher.</p><p>11 Pushkinskaya street, Petrozavodsk 185910</p></bio><email xlink:type="simple">chthonian@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт геологии КарНЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Geology, Karelian Research Centre of RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Геологический институт КНЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Geological Institute, Kola Science Centre of RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>08</day><month>12</month><year>2018</year></pub-date><volume>9</volume><issue>4</issue><fpage>1189</fpage><lpage>1203</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Родионов А.И., Николаева С.Б., Рязанцев П.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Родионов А.И., Николаева С.Б., Рязанцев П.А.</copyright-holder><copyright-holder xml:lang="en">Rodionov A.I., Nikolaeva S.B., Ryazantsev P.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://www.gt-crust.ru/jour/article/view/673">https://www.gt-crust.ru/jour/article/view/673</self-uri><abstract><p>В статье рассматривается опыт применения метода георадиолокации для изучения донных осадков водоемов, которые являются хорошими архивами различных геодинамических процессов голоцена, в том числе тектонических и палеосейсмических. Объектом изучения было малое озеро Уполокшское, расположенное на территории Кольского полуострова. Оно приурочено к зоне активного линеамента северо-западного простирания, протяженностью более 20 км, вдоль которого вытянута серия озовых гряд. Предшествующими исследованиями донные отложения озера изучались геологическими методами, в числе которых отбор керна, литологический и микропалеонтологический анализ осадков. В результате был выделен горизонт, обладающий признаками, которые указывают на катастрофические изменения условий осадконакопления вследствие одномоментного воздействия. Цель представленной работы – оценка уровня информативности георадиолокации при выявлении нарушений в донных осадках, а также поиск и изучение новых палеосеймодислокаций в рамках существующей гипотезы о распределении очагов сейсмической активности на Кольском полуострове в голоцене. Для этого при помощи георадара ОКО-2 с антенным блоком 150 МГц выполнена детальная съемка котловины озера Уполокшское, что позволило уточнить мощность и проследить положение главных стратиграфических горизонтов донных отложений, установленных ранее. Погрешность результатов георадиолокации при сопоставлении с данными бурения не превысила ±0.2 м, что соотносится с разрешающей способностью используемой антенны. В ходе исследования по данным георадиолокации подтверждено существование сейсмодислокаций, выявленных геологическими методами, а также обнаружены новые области смещения и деформации органогенных и минерагенных донных осадков. К таким объектам относятся вертикальные смещения с амплитудой от 1.3 до 1.7 м, а также оползневые тела, вызванные сейсмогравитационными обвалами. Помимо этого, по результатам работ была построена батиметрическая карта, по которой определено положение двух котловин озера, и модель изоповерхности кровли минерагенной толщи. В центральной части модели минерального основания наблюдается ряд отдельных ступенчатых блоков субширотного простирания, сформированных в результате сейсмических подвижек. В результате исследований на примере озера Уполокшское показано, что метод георадиолокации позволяет оценить минеральную и органогенную часть донных отложений и изучить их литостратиграфические особенности, а также выделить изменение структуры залегания донных осадков. При этом были закартированы даже мелкомасштабные нарушения.</p></abstract><trans-abstract xml:lang="en"><p>The article describes the experience of using the GPR method to study the bottom sediments of Lake Upoloksha located in the Kola Peninsula, Russia. Such sediments are viewed as good archives of various Holocene geodynamic processes, including tectonic and paleoseismic events. This small lake is located in the zone of the active NW-striking lineament, which length is more than 20 km. A series of åsars (eskers) stretches along the lineament. In the previous studies, the bottom sediments of the lake were investigated by geological methods, including core sampling, lithological and micro-palaeontological analysis of sediments. The studies have revealed a horizon which features are indicative of catastrophic changes in the sedimentation conditions due to a single impact. Our study aimed at evaluating the level of informativeness of the GPR method for detecting disturbances in the bottom sediments and new paleoseismic dislocations. The study referred to the hypothesis of the distribution of seismic foci in the Kola Peninsula in the Holocene. A ground-penetrating radar OKO-2 and an antenna unit (150 MHz) were used to survey of Lake Upoloksha in detail. The positions of the main stratigraphic horizons of the bottom sediments were clarified, and their thicknesses were measured more precisely. The GPR measurement error in comparison to the drilling data did not exceed ±0.2 m, which corresponds to the resolution of the antenna used in the survey. The GPR data confirmed the existence of seismic dislocations identified by the geological methods and discovered new zones of displacement and deformation in the organogenic and mineral bottom sediments. The survey detected vertical displacements, which amplitudes vary from 1.3 to 1.7 m, and landslides caused by seismogravitational rock collapse. Based on the GPR data, a bathymetric map was constructed. It shows the positions of the two basins of Lake Upoloksha. The survey provided the basis for a model showing the isosurface of the top of the mineragenous sequence. In the central part of the mineral-base model, there is a series of individual stepwise blocks of the sublatitudinal strike, which result from seismic movements. The GPR survey of Lake Upoloksha demonstrates that the GPR method can be successfully applied to estimate the mineral and organogenic parts of the bottom sediments, study their lithostratigraphic features, and detect changes in the structure of the bottom sediments. Based on the GPR data, it becomes possible to map even the small-scale disturbances.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>георадиолокация</kwd><kwd>радарограмма</kwd><kwd>донные осадки</kwd><kwd>голоцен</kwd><kwd>сейсмодислокация</kwd><kwd>неотектоника</kwd><kwd>Кольский полуостров</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ground penetrating radar</kwd><kwd>radar profiles</kwd><kwd>bottom-sediments</kwd><kwd>seismic faults</kwd><kwd>Holocene</kwd><kwd>neotectonics</kwd><kwd>Kola Peninsula</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">РФФИ, проект № 17-35-50079 «Поиск и локализация нарушений и деформаций в четвертичных отложениях восточной части Фенноскандинавского щита методом георадиолокации»</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">Bayer P., Huggenberger P., Renard P., Comunian A., 2011. 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