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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-11865</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/11865</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Без раздела</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Without section</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Contact-metamorphic changes of coal at the Kayerkanskoye field</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>О контактово-метаморфических изменениях угля на Кайерканском месторождении</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Beresneva</surname>
            <given-names>D. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Береснева</surname>
              <given-names>Д. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Beresneva</surname>
              <given-names>D. I.</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"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Kiryukov</surname>
            <given-names>V. V.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Кирюков</surname>
              <given-names>В. В.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Kiryukov</surname>
              <given-names>V. V.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1971-02-01">
        <day>01</day>
        <month>02</month>
        <year>1971</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1971</year>
      </pub-date>
      <volume>60</volume>
      <issue>2</issue>
      <fpage>119</fpage>
      <lpage>122</lpage>
      <history>
        <date date-type="received" iso-8601-date="1970-08-16">
          <day>16</day>
          <month>08</month>
          <year>1970</year>
        </date>
        <date date-type="accepted" iso-8601-date="1970-10-04">
          <day>04</day>
          <month>10</month>
          <year>1970</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1971-02-01">
          <day>01</day>
          <month>02</month>
          <year>1971</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1971 Д. И. Береснева, В. В. Кирюков</copyright-statement>
        <copyright-statement xml:lang="en">© 1971 D. I. Beresneva, V. V. Kiryukov</copyright-statement>
        <copyright-year>1971</copyright-year>
        <copyright-holder xml:lang="ru">Д. И. Береснева, В. В. Кирюков</copyright-holder>
        <copyright-holder xml:lang="en">D. I. Beresneva, V. V. Kiryukov</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/11865">https://pmi.spmi.ru/pmi/article/view/11865</self-uri>
      <abstract xml:lang="ru">
        <p>На Кайерканском месторождении проведено комплексное изучение изменения углей пластов X и IX (далдыканская свита Р) на контактах с дайками долеритов для выявления характера связи между масштабами интрузий и приконтактовых зон измененного угля, а также особенностей контактово-термального метаморфизма угля. На различных расстояниях от контактов с дайками прослежены изменения значений основных показателей угля: зольность, выход летучих, калорийность, содержание углерода, удельный вес, отражательная способность, микротвердость.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>At the Kayerkanskoye field, a comprehensive study was carried out of the alteration of coals in seams X and IX (Daldykan Formation, P ) at contacts with dolerite dikes in order to determine the nature of the relationship between the size of intrusions and the near‑contact zones of altered coal, as well as the characteristics of contact‑thermal metamorphism of the coal. At different distances from the contacts with dikes, changes in the values of the main coal parameters were traced: ash content, volatile matter yield, calorific value, carbon content, specific gravity, reflectance, and microhardness.</p>
      </abstract>
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