<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "https://jats.nlm.nih.gov/publishing/1.3/JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xml:lang="en">
  <front>
    <journal-meta>
      <journal-title-group>
        <journal-title>π-Economy</journal-title>
        <trans-title-group xml:lang="ru">
          <trans-title>π-Economy</trans-title>
        </trans-title-group>
      </journal-title-group>
      <issn pub-type="epub">2782-6015</issn>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">11</article-id>
      <title-group>
        <article-title>Stages of useful coal fields co products economical evaluation</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Этапы экономической оценки попутных полезных компонентов угольных месторождений</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Salihov</surname>
            <given-names>Valery</given-names>
          </name>
          <email>stiger@nkfi.ru</email>
        </contrib>
      </contrib-group>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2011-06-10">
        <day>10</day>
        <month>06</month>
        <year>2011</year>
      </pub-date>
      <issue>3</issue>
      <issue-id pub-id-type="publisher-id">125</issue-id>
      <fpage>66</fpage>
      <lpage>71</lpage>
      <abstract xml:lang="en">
        <p>The non-ferrous and rare metals reclaiming of hydrocarbon raw availability is founded and the metal mineral base progress trends analyses all around the word and in russia. Classification of useful co products of complex ores and anthropogenic wastes is given in this article. Methodological foundations of anthropogenic field economical valuation are grounded here.</p>
      </abstract>
      <kwd-group xml:lang="en">
        <kwd>HYDROCARBON FIELDS</kwd>
        <kwd>COALS</kwd>
        <kwd>ASH DUMPS</kwd>
        <kwd>NON-FERROUS AND RARE METALS</kwd>
        <kwd>ECONOMICAL VALUATION</kwd>
      </kwd-group>
    </article-meta>
  </front>
</article>
