<?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>R. L. Hay</dc:contributor>
  <dc:creator>J. R. O’Neil</dc:creator>
  <dc:date>1973</dc:date>
  <dc:description>&lt;div id="abstracts" class="Abstracts u-font-serif text-s"&gt;&lt;div id="ab1" class="abstract author" lang="en"&gt;&lt;div id="aep-abstract-sec-id6"&gt;&lt;p&gt;The cherts formed from sodium silicate precursors in East African saline, alkaline lakes have δ&lt;sup&gt;18&lt;/sup&gt;O values ranging from 31.1 to 44.1. The δ&lt;sup&gt;18&lt;/sup&gt;O values correlate in general with lake salinities as inferred from geologic evidence, indicating that most chert was formed from its precursor in contact with lake water trapped at the time of deposition. A few of the analyzed cherts probably formed in contact with dilute meteoric water. From the widely varying δ&lt;sup&gt;18&lt;/sup&gt;O values we conclude that precursors were transformed to chert in fluids of widely varying salinity and a&lt;sub&gt;Na&lt;sup&gt;+&lt;/sup&gt;&lt;/sub&gt;/a&lt;sub&gt;H&lt;sup&gt;+&lt;/sup&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;ratio.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;ul id="issue-navigation" class="issue-navigation u-margin-s-bottom u-bg-grey1"&gt;&lt;/ul&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/0012-821X(73)90126-X</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>18O 16O ratios in cherts associated with the saline lake deposits of East Africa</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>