<?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:creator>M. R. Campbell</dc:creator>
  <dc:date>1930</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;If the evidence presented in the body of this paper is accepted, there seems to be no question that eight stages in the metamorph-ism of&amp;nbsp;&lt;/span&gt;coal&lt;span&gt;&amp;nbsp;can be recognized and explained by the processes that have been active in the earth coincident with the development of plant life on the land; and that at least six of these stages have left few if any marks on the composition or physical appearance of the sediments associated with the&amp;nbsp;&lt;/span&gt;coal&lt;span&gt;, therefore, they may be classed&amp;nbsp;&lt;/span&gt;as&lt;span&gt;&amp;nbsp;&lt;/span&gt;incipient&lt;span&gt;&amp;nbsp;stages of&amp;nbsp;&lt;/span&gt;rock&lt;span&gt;&amp;nbsp;metamorphism.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.2113/gsecongeo.25.7.675</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Society of Economic Geologists</dc:publisher>
  <dc:title>Coal as a recorder of incipient rock metamorphismy</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>