<?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>D.J. Blunt</dc:contributor>
  <dc:contributor>H.E. Clifton</dc:contributor>
  <dc:creator>K.A. Kvenvolden</dc:creator>
  <dc:date>1979</dc:date>
  <dc:description>&lt;div id="preview-section-abstract"&gt;&lt;div id="abstracts" class="Abstracts u-font-serif text-s"&gt;&lt;div id="aep-abstract-id5" class="abstract author"&gt;&lt;div id="aep-abstract-sec-id6"&gt;&lt;p&gt;Extents of racemization (&lt;span class="math"&gt;&lt;span id="MathJax-Element-1-Frame" class="MathJax_SVG" data-mathml="&lt;math xmlns=&amp;quot;http://www.w3.org/1998/Math/MathML&amp;quot;&gt;&lt;mtext&gt;d&lt;/mtext&gt;&lt;mtext&gt;l&lt;/mtext&gt;&lt;/math&gt;"&gt;&lt;span class="MJX_Assistive_MathML"&gt;dl&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;ratios) of amino acids in fossil&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Saxidomus giganteus&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;(Deshayes) and&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Ostrea lurida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;Carpenter were measured on shell deposits exposed at 21 sites on the east side of Willapa Bay, Washington. Amino acids from&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Saxidomus&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;show less variability in&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="math"&gt;&lt;span id="MathJax-Element-2-Frame" class="MathJax_SVG" data-mathml="&lt;math xmlns=&amp;quot;http://www.w3.org/1998/Math/MathML&amp;quot;&gt;&lt;mtext&gt;d&lt;/mtext&gt;&lt;mtext&gt;Spl&lt;/mtext&gt;&lt;/math&gt;"&gt;&lt;span class="MJX_Assistive_MathML"&gt;dSpl&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;ratios and, therefore, are of greater use in correlation and age estimation than are amino acids from&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Ostrea&lt;/i&gt;. Shells of two different ages, about 120,000 ± 40,000 yr old and about 190,000 ± 40,000 yr old, are present. These ages correspond to Stages 5 and 7 of the marine isotope record defined by&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="small-caps"&gt;Shackleton&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;and&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span class="small-caps"&gt;Opdyke&lt;/span&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in 1973 and hence the shell deposits likely formed during two different high stands of sea level. The stratigraphic record at Willapa Bay is consistent with this interpretation.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;div id="preview-section-introduction"&gt;&lt;br&gt;&lt;/div&gt;&lt;div id="preview-section-snippets"&gt;&lt;br&gt;&lt;/div&gt;&lt;div id="preview-section-references"&gt;&lt;br&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/0016-7037(79)90144-3</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Amino-acid racemizarion in Quaternary shell deposits at Willapa Bay, Washington</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>