<?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>John C. Roller</dc:creator>
  <dc:date>1964</dc:date>
  <dc:description>A reversed seismic-refraction profile was recorded in the Colorado Plateaus Province from Hanksville, Utah, to Chinle, Arizona, The velocity of P&lt;sub&gt;g&lt;/sub&gt; is 6.2 km/sec, and the true velocity of P&lt;sub&gt;n&lt;/sub&gt; is 7.8 km/sec, Waves identified as reflections indicate that an intermediate layer in the crust has a velocity of approximately 6.8 km/sec. Thickness of the crust is 43 km at Chinle and 40 km at Hanksville. The P&lt;sub&gt;n&lt;/sub&gt; velocity in the Colorado Plateaus Province is the same as that in the Basin and Range Province, but is significantly lower than Pn in the High Plains of Colorado.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/70040815</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Crustal structure in the eastern Colorado Plateaus Provence from seismic-refraction measurements</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>