<?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>Philip H. Nelson</dc:creator>
  <dc:date>2007</dc:date>
  <dc:description>Potassium is an emitter of gamma-ray radiation, consequently deposits of potash can be detected and evaluated using gamma-ray logs. A method originally designed to evaluate uranium deposits in boreholes can also be applied to potash deposits. The method equates the depth-integral of a gamma-ray log to the grade-thickness product of a potash-bearing bed or series of beds. The average grade of a bed is then determined by dividing by the overall bed thickness, which can also be obtained from the gamma-ray log. The method was tested using gamma-ray logs and potash assays from boreholes near Carlsbad, New Mexico.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/ofr20071292</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Geological Survey (U.S.)</dc:publisher>
  <dc:title>Evaluation of Potash Grade with Gamma-ray Logs</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>