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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Earth Sciences</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Earth Sciences</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Russian Journal of Earth Sciences</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">1681-1208</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">103856</article-id>
   <article-id pub-id-type="doi">10.2205/2026ES001079</article-id>
   <article-id pub-id-type="edn">itrkfh</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ORIGINAL ARTICLES</subject>
    </subj-group>
    <subj-group>
     <subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Occurrence of Bauxite at the Shemrai Deposit of the Belgorod High-grade Iron ore Region (Kursk Magnetic Anomaly</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Проявление бокситов на Шемраевском месторождении Белгородского железорудного района (Курская магнитная аномалия)</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1134-6248</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Никулин</surname>
       <given-names>Иван Иванович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nikulin</surname>
       <given-names>Ivan Ivanovich</given-names>
      </name>
     </name-alternatives>
     <email>iinikulin@gmail.com</email>
     <bio xml:lang="ru">
      <p>доктор геолого-минералогических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of geological and mineralogical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2793-7173</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Боева</surname>
       <given-names>Наталья Михайловна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Boeva</surname>
       <given-names>Natalia Mihaylovna</given-names>
      </name>
     </name-alternatives>
     <email>boevaigem@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор геолого-минералогических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of geological and mineralogical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт геологии рудных месторождений, петрографии, минералогии и геохимии Российской академии наук</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт геологии рудных месторождений, петрографии, минералогии и геохимии Российской академии наук (ИГЕМ РАН)</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences (IGEM RAS)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2026-07-22T14:23:47+03:00">
    <day>22</day>
    <month>07</month>
    <year>2026</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-07-22T14:23:47+03:00">
    <day>22</day>
    <month>07</month>
    <year>2026</year>
   </pub-date>
   <volume>26</volume>
   <issue>3</issue>
   <elocation-id>ES3004</elocation-id>
   <history>
    <date date-type="received" iso-8601-date="2025-09-03T00:00:00+03:00">
     <day>03</day>
     <month>09</month>
     <year>2025</year>
    </date>
    <date date-type="accepted" iso-8601-date="2025-11-05T00:00:00+03:00">
     <day>05</day>
     <month>11</month>
     <year>2025</year>
    </date>
   </history>
   <self-uri xlink:href="https://rjes.ru/en/nauka/article/103856/view">https://rjes.ru/en/nauka/article/103856/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе представлены результаты первых комплексных исследований геологогеохимических особенностей формирования бокситов в коре выветривания пород протерозойской курской серии в пределах Шемраевского месторождения богатых железных руд. Применение комплекса современных методов (рентгенофазовый анализ, рентгенофлуоресцентный анализ, ICP-MS масс-спектрометрия, петрографические и минералогические исследования) позволило установить, что образование бокситов происходило по филлитовидным сланцам в условиях умеренной латеритизации, сопровождавшейся интенсивным выносом кремнезёма. Сравнительный анализ геохимических данных и построение дискриминационных диаграмм выявили многостадийный характер процесса бокситообразования. Накопление глинозёма осуществлялось in situ, благодаря высокой проницаемости преобразованных пород курской серии и воздействию метеорных вод. Установлена обратная корреляция между содержанием глинистых минералов и интенсивностью латеритизации, что указывает на их формирование в различные временные этапы. Выявленное проявление классифицируется как ферриаллитовая кора выветривания. Обнаружение бокситоносных проявлений в данной части Курской магнитной аномалии (КМА) свидетельствует о высоком потенциале для выявления новых месторождений бокситов на юге КМА.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper presents the results of the first comprehensive studies of the geological and geochemical features of bauxite formation in the crust of the weathering rocks of the Proterozoic Kursk series within the Shemraevsky deposit of rich iron ores. The use of a complex of modern methods (X-ray phase analysis, X-ray fluorescence analysis, ICP-MS mass spectrometry, petrographic and mineralogical studies) made it possible to establish that bauxite formation occurred in phyllite shales under conditions of moderate lateritization, accompanied by intensive removal of silica. A comparative analysis of geochemical data and the construction of discriminatory diagrams revealed the multi-stage nature of the bauxite formation process. The accumulation of alumina was carried out in situ, due to the high permeability of the transformed rocks of the Kursk series and the effects of meteoric waters. An inverse correlation has been established between the content of clay minerals and the intensity of lateritization, which indicates their formation at various time stages. The revealed manifestation is classified as a ferriallite weathering crust. The discovery of bauxite-bearing manifestations in this part of the Kursk Magnetic anomaly (KMA) indicates a high potential for the identification of new bauxite deposits in the south of the KMA.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>бёмит</kwd>
    <kwd>гиббсит</kwd>
    <kwd>кора выветривания</kwd>
    <kwd>Курская серия</kwd>
    <kwd>Шемраевское месторождение</kwd>
    <kwd>Белгородский рудный район</kwd>
    <kwd>латеритизация</kwd>
    <kwd>ферриаллитовая кора</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>boehmite</kwd>
    <kwd>gibbsite</kwd>
    <kwd>weathering crust</kwd>
    <kwd>Kursk series</kwd>
    <kwd>Shemraevskoye deposit</kwd>
    <kwd>Belgorod ore region</kwd>
    <kwd>lateritization</kwd>
    <kwd>ferriallite crust</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке государственного задания ИГЕМ РАН «Кристаллохимические особенности, химический состав минералов и их ассоциаций как генетические индикаторы эндогенных и экзогенных процессов» № 124022400142-2, аналитические исследования проведены в ЦКП «ИГЕМ АНАЛИТИКА».</funding-statement>
    <funding-statement xml:lang="en">The study was carried out with the financial support of the state assignment of the IGEM RAS “Crystal-chemical features, chemical composition of minerals and their associations as genetic indicators of endogenous and exogenous processes” No. 124022400142-2, analytical studies were carried out at the IGEM ANALITIKA Collective Use Center.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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  <p></p>
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