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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-2026-17-4-0901</article-id><article-id custom-type="edn" pub-id-type="custom">CMGEWK</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-2348</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>ВЫЯВЛЕНИЕ РЕГИОНАЛЬНЫХ ТЕКТОНИЧЕСКИХ СТРУКТУР КАМЕРУНСКОЙ ЛИНИИ ВУЛКАНОВ С ПОМОЩЬЮ ГРАВИМАГНИТНЫХ НАБЛЮДЕНИЙ И ДВУМЕРНОГО АНАЛИЗА РЕЛЬЕФА ПО ЛАПЛАСИАНУ</article-title><trans-title-group xml:lang="en"><trans-title>IDENTIFICATION OF REGIONAL TECTONIC STRUCTURES OF CAMEROON VOLCANIC LINE USING GRAVIMAGNETIC AND 2D LAPLACIAN TERRAIN ANALYSIS TECHNIQUES</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>Эколл</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ekolle</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630090, Новосибирск, ул. Пирогова, 1</p></bio><bio xml:lang="en"><p>1 Pirogov St, Novosibirsk 630090</p></bio><email xlink:type="simple">ekolleeya@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Новосибирский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>19</day><month>08</month><year>2026</year></pub-date><volume>17</volume><issue>4</issue><fpage>901</fpage><lpage>901</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Эколл Н.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Эколл Н.А.</copyright-holder><copyright-holder xml:lang="en">Ekolle N.E.</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/2348">https://www.gt-crust.ru/jour/article/view/2348</self-uri><abstract><p>Камерун представляет собой протяженную тектоническую систему, включающую в себя геологически значимую структуру Центральной Африки – так называемую Камерунскую линию вулканов. Для выявления новых тектонических структур вкрест Камерунской линии вулканов в данном исследовании был применен многостадийный подход с использованием данных модели гравитационного поля Земли XGM2019e_2159, данных модели EMAG2, а также данных цифровой модели рельефа GMRT. Вертикальные производные первого и второго порядка как магнитного, так и гравитационного поля были использованы для выделения геологических структур на изучаемых территориях. Для выделения характерного для структур тренда из данных потенциального поля был применен метод улучшения границ гравимагнитных данных с использованием нормированной статистики (выделение границ стандартного отклонения) и фазового симметрирования. Фазовое симметрирование сделало возможным поэтапное выделение хребтов и долин, соответствующих геологическим структурам независимо от силы аномалий, обеспечивая устойчивость к шуму и артефактам интерполяции. Для детального анализа с целью выделения новых и уже существующих линеаментов было проведено вычисление двумерного преобразования рельефа по лапласиану по топографическим данным на высотах от 20 до 105 км. Выделенные структуры гравитационного и магнитного поля были наложены на преобразованную топографическую карту и отмечены для определения ориентации и направления разломов. В исследовании проиллюстрировано появление потенциальных геологических особенностей, связанных с гравитационными аномалиями, магнитными аномалиями, а также с новыми линеаментами, выделенными на данной территории. Полученные результаты указывают на то, что выделенные линеаменты в основном ориентированы в направлении ЮВ-ЮЗ и свидетельствуют о до сих пор продолжающейся деформации Камерунской линии вулканов. Данное открытие является важным для улучшения регионального тектонического моделирования вкрест Камерунской линии вулканов.</p></abstract><trans-abstract xml:lang="en"><p>Cameroon is made up of an extensive tectonic system that includes a geologically significant structure in Central Africa called the Cameroon Volcanic Line (CVL). In this study, a multi-phase approach was applied to identify new tectonic structures across the CVL using gravity data from the XGM2019e_2159 model, magnetic data from EMAG2, and topographic data from GMRT. First-order and second-order vertical derivatives of both magnetic and gravity data were used to filter geologic structures in the study areas. To understand the trend of the structures based on the potential field, edge enhancement of potential-field data using normalized statistics (standard deviation edge detection) and phase sym­metry were applied. Phase symmetry provides phase-based formulation that can detect ridges and valleys corresponding to geological structures regardless of anomaly strength, making it robust to noise and interpolation artifacts. For de­tailed analysis to delineate new and already existing lineaments, a 2D Laplacian terrain transformation of the topographic data was computed at various heights from 20 to 105 km. The gravitational and magnetic structures discovered were superimposed on the transformed topographic map and drawn out to identify the orientation and direction of the faults. The study further illustrates the occurrence of potential geologic features associated with gravity anomalies, magnetic anomalies, and the new lineaments identified in the area. These results highlight that the lineaments identified are mostly orientated SE-SW and act as evidence of the still continuing process of deformation of the CVL. This finding is essential for advanced regional tectonic modeling across the CVL.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гравиметрическая аномалия</kwd><kwd>выделение границ</kwd><kwd>разломы</kwd><kwd>линеаменты</kwd><kwd>двумерное преобразование рельефа по лапласиану</kwd><kwd>Камерунская линия вулканов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gravimagnetic anomaly</kwd><kwd>edge detection</kwd><kwd>faults</kwd><kwd>lineaments</kwd><kwd>2D Laplacian terrain transformation</kwd><kwd>CVL</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">Adams A., 2022. Insights Into the Source of Magmatic Hot-Lines: Forty Years of Geophysical Studies of the Cameroon Volcanic Line. Frontiers in Earth Science 10, 838993. https://doi.org/10.3389/feart.2022.838993.</mixed-citation><mixed-citation xml:lang="en">Adams A., 2022. 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