<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>P.C. Lyons</dc:contributor>
  <dc:contributor>C.L. Thompson</dc:contributor>
  <dc:contributor>F. W. Brown</dc:contributor>
  <dc:contributor>G.E. Maciel</dc:contributor>
  <dc:creator>Patrick G. Hatcher</dc:creator>
  <dc:date>1982</dc:date>
  <dc:description>&lt;p&gt;Chemical analyses of morphologically preserved organic matter in a Carboniferous coal ball reveal that the material is coalified to a rank approximately equal to that of the surrounding coal. Hence, the plant tissues in the coal ball were chemically altered by coalification processes and were not preserved as peat.&amp;nbsp;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1126/science.217.4562.831</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>American Association for the Advancement of Science</dc:publisher>
  <dc:title>Organic matter in a coal ball: Peat or coal?</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>