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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15212</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15212</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Геология</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">On the question of the microstructure of oolitic limestones</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>К вопросу о микроструктуре оолитовых известняков</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Mitkevich-Volchasskii</surname>
            <given-names>E. E.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Миткевич-Волчасский</surname>
              <given-names>Е. Е.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Mitkevich-Volchasskii</surname>
              <given-names>E. E.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1917-12-01">
        <day>01</day>
        <month>12</month>
        <year>1917</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1926</year>
      </pub-date>
      <volume>6</volume>
      <issue>2</issue>
      <fpage>77</fpage>
      <lpage>83</lpage>
      <history>
        <date date-type="received" iso-8601-date="1917-06-16">
          <day>16</day>
          <month>06</month>
          <year>1917</year>
        </date>
        <date date-type="accepted" iso-8601-date="1917-08-13">
          <day>13</day>
          <month>08</month>
          <year>1917</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1917-12-01">
          <day>01</day>
          <month>12</month>
          <year>1917</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© E. E. Mitkevich-Volchasskii</copyright-statement>
        <copyright-year>1917</copyright-year>
        <copyright-holder xml:lang="ru">Е. Е. Миткевич-Волчасский</copyright-holder>
        <copyright-holder xml:lang="en">E. E. Mitkevich-Volchasskii</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15212">https://pmi.spmi.ru/pmi/article/view/15212</self-uri>
      <abstract xml:lang="ru">
        <p>Исследуя петрографический материал, собранный мною в 1914 году при геологическнх исследованиях в Средне-Витимской горной стране, я встретил среди образцов известняков экземпляры, в которых можно было наблюдать под микроскопом хорошо сохранившееся оолитовое отложение, лишь отчасти замаскированное последующей перекристаллизацией. Значительный интерес, представляемый находкой оолитовых образований среди метаморфических пород Витимского плоскогорья побудили меня ознакомиться более подробно с оолитовым строеним на материале, где первичная структура не была бы затушевана вторичными изменениями.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>While examining the petrographic material that I collected in 1914 during geological research in the Middle Vitim mountainous country, I came across specimens among limestone samples in which well-preserved oolitic deposits could be observed under a microscope, only partly masked by subsequent recrystallization. The significant interest represented by the discovery of oolitic formations among the metamorphic rocks of the Vitim Plateau prompted me to familiarize myself in more detail with the oolitic structure on material where the primary structure would not be obscured by secondary changes.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>-</kwd>
      </kwd-group>
    </article-meta>
  </front>
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    <ref-list>
      <ref id="ref1">
        <label>1</label>
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        <label>6</label>
        <mixed-citation xml:lang="ru">Rosenbusch. ibid. стр. 395.</mixed-citation>
        <mixed-citation xml:lang="en">Rosenbusch. ibid. стр. 395.</mixed-citation>
      </ref>
      <ref id="ref7">
        <label>7</label>
        <mixed-citation xml:lang="ru">Rosenbusch ibid. стр. 398.</mixed-citation>
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        <label>9</label>
        <mixed-citation xml:lang="ru">Linck. Die Bildung der Oolithe und Rogensteine. Neues Jahrb. f. Min. Geol. u. Petr. 1903. XVI. Beil.-B.</mixed-citation>
        <mixed-citation xml:lang="en">Linck. Die Bildung der Oolithe und Rogensteine. Neues Jahrb. f. Min. Geol. u. Petr. 1903. XVI. Beil.-B.</mixed-citation>
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</article>
