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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-11508</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/11508</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">Boundaries of geological objects</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Границы геологических объектов</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Nalivkin</surname>
            <given-names>V. D.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Наливкин</surname>
              <given-names>В. Д.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Nalivkin</surname>
              <given-names>V. D.</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">Всесоюзный нефтяной геолого-разв. ин-т (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">All-Union Oil Geological and Exploration Institute (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1974-02-01">
        <day>01</day>
        <month>02</month>
        <year>1974</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1974</year>
      </pub-date>
      <volume>67</volume>
      <issue>2</issue>
      <fpage>51</fpage>
      <lpage>54</lpage>
      <history>
        <date date-type="received" iso-8601-date="1973-08-06">
          <day>06</day>
          <month>08</month>
          <year>1973</year>
        </date>
        <date date-type="accepted" iso-8601-date="1973-10-30">
          <day>30</day>
          <month>10</month>
          <year>1973</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1974-02-01">
          <day>01</day>
          <month>02</month>
          <year>1974</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1974 В. Д. Наливкин</copyright-statement>
        <copyright-statement xml:lang="en">© 1974 V. D. Nalivkin</copyright-statement>
        <copyright-year>1974</copyright-year>
        <copyright-holder xml:lang="ru">В. Д. Наливкин</copyright-holder>
        <copyright-holder xml:lang="en">V. D. Nalivkin</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/11508">https://pmi.spmi.ru/pmi/article/view/11508</self-uri>
      <abstract xml:lang="ru">
        <p>Известно, что все объекты в геологии имеют пределы как в пространстве, так и во времени. Эти пределы не бесконечны. Гранины их носят различный характер, причем типы границ близки для объектов и явлений, изменяющихся как во времени, так и в пространстве.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>It is known that all objects in geology have limits both in space and in time. These limits are not infinite. Their boundaries are of a different character, and the types of boundaries are similar for objects and phenomena changing both in time and in space.</p>
      </abstract>
    </article-meta>
  </front>
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