<?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>M.G. Zreda</dc:contributor>
  <dc:contributor>S.S. Smith</dc:contributor>
  <dc:contributor>D. Elmore</dc:contributor>
  <dc:contributor>P.W. Kubik</dc:contributor>
  <dc:contributor>R.I. Dorn</dc:contributor>
  <dc:contributor>D. J. Roddy</dc:contributor>
  <dc:creator>F. M. Phillips</dc:creator>
  <dc:date>1991</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Using cosmogenic&amp;nbsp;&lt;/span&gt;&lt;sup&gt;36&lt;/sup&gt;&lt;span&gt;Cl buildup and rock varnish radiocarbon, we have measured the exposure age of rock surfaces at Meteor Crater, Arizona. Our&amp;nbsp;&lt;/span&gt;&lt;sup&gt;36&lt;/sup&gt;&lt;span&gt;Cl measurements on four dolomite boulders ejected from the crater by the impact yield a mean age of 49.7 ± 0.85 ka, which is in excellent agreement with an average age of 49 ± 3 ka obtained from thermoluminescence studies on shock-metamorphosed dolomite and quartz. These ages are supported by undetectably low&amp;nbsp;&lt;/span&gt;&lt;sup&gt;14&lt;/sup&gt;&lt;span&gt;C in the oldest rock varnish sample.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/0016-7037(91)90387-K</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic 36Cl and 14C in rock varnish</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>