<?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>H. T. Morris</dc:creator>
  <dc:date>1951</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Field&amp;nbsp;&lt;/span&gt;techniques&lt;span&gt;&amp;nbsp;for the rapid extraction and estimation of copper, lead, and zinc from altered rock are described, together with their application&amp;nbsp;&lt;/span&gt;in&lt;span&gt;&amp;nbsp;the&amp;nbsp;&lt;/span&gt;Tintic&lt;span&gt;&amp;nbsp;&lt;/span&gt;district&lt;span&gt;,&amp;nbsp;&lt;/span&gt;Utah&lt;span&gt;. Either sulfuric acid or an acetic acid-ammonium acetate reagent is feasible&amp;nbsp;&lt;/span&gt;as&lt;span&gt;&amp;nbsp;an extractant; but of these two, sulfuric acid is preferred. Data obtained by partial extraction methods show that zinc and lead are concentrated&amp;nbsp;&lt;/span&gt;in&lt;span&gt;&amp;nbsp;altered extrusive rocks 350 to 500 feet above a horizontal, pipelike ore body&amp;nbsp;&lt;/span&gt;in&lt;span&gt;&amp;nbsp;limestone, where the extrusive rocks are cut by a fracture zone related to a strong premineral cross fault. Such concentrations are absent&amp;nbsp;&lt;/span&gt;in&lt;span&gt;&amp;nbsp;altered but unbrecciated igneous rocks above the continuation of the same ore body&amp;nbsp;&lt;/span&gt;in&lt;span&gt;&amp;nbsp;an unfaulted area.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.2113/gsecongeo.46.6.608</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Society of Economic Geologists</dc:publisher>
  <dc:title>Geochemical techniques as applied in recent investigations in the Tintic District, Utah</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>