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<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>C. Fred T. Andrus</dc:contributor>
  <dc:contributor>Kevin B. Jones</dc:contributor>
  <dc:contributor>Gregory W. L. Hodgins</dc:contributor>
  <dc:creator>Miguel F. Etayo-Cadavid</dc:creator>
  <dc:date>2018</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Two&amp;nbsp;&lt;/span&gt;&lt;i&gt;Donax obesulus&lt;/i&gt;&lt;span&gt;&amp;nbsp;and two&amp;nbsp;&lt;/span&gt;&lt;i&gt;Protothaca asperrima&lt;/i&gt;&lt;span&gt;&amp;nbsp;shells collected prior to the nuclear testing of the 1950's were micromilled at sub-seasonal resolution to yield new reservoir effect (ΔR) estimates for the coast of Peru. Shells from northern (4°40′S to 8°14′S) and central (13°52′S) Peru produced ΔR values of 123 ± 50 and 110 ± 49 years respectively. We found such values statistically indistinguishable from each other while reporting intra-annual ΔR variability along shells&amp;nbsp;&lt;a title="Learn more about ontogenesis" href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/ontogenesis" data-mce-href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/ontogenesis"&gt;ontogeny&lt;/a&gt;&amp;nbsp;in agreement with previously published regional ΔR values. This similarity suggests&amp;nbsp;&lt;a title="Learn more about Radiocarbon Dating" href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/radiocarbon-dating" data-mce-href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/radiocarbon-dating"&gt;radiocarbon dating&lt;/a&gt;&amp;nbsp;of short-lived (&amp;lt;1.5 years)&amp;nbsp;&lt;a title="Learn more about mollusks" href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/mollusks" data-mce-href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/mollusks"&gt;mollusks&lt;/a&gt;&amp;nbsp;shells is a useful tool for comparing marine radiocarbon signals. Additionally, our analysis of ΔR and δ&lt;/span&gt;&lt;sup&gt;18&lt;/sup&gt;&lt;span&gt;O changes along shells' ontogeny found a tenuous relationship between them. We are not the first one to report these phenomena in Peruvian&amp;nbsp;&lt;a title="Learn more about Upwelling" href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/upwelling" data-mce-href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/upwelling"&gt;upwelling&lt;/a&gt;, but we are the first to suggest that fast&amp;nbsp;&lt;a title="Learn more about Lagrangian function" href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/lagrangian-function" data-mce-href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/lagrangian-function"&gt;Lagrangian&lt;/a&gt;&amp;nbsp;water mixing as a mechanism behind it.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/j.chemgeo.2018.07.001</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Subseasonal variations in marine reservoir age from pre-bomb Donax obesulus and Protothaca asperrima shell carbonate</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>