<?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>Jennifer A. Flannery</dc:contributor>
  <dc:contributor>Julie N. Richey</dc:contributor>
  <dc:contributor>Anastasios Stathakopoulos</dc:contributor>
  <dc:creator>Tess E. Busch</dc:creator>
  <dc:date>2015</dc:date>
  <dc:description>&lt;p&gt;An inverse relationship has been demonstrated between water temperature and the ratio of strontium to calcium (Sr/Ca) in coral aragonite for a number of Pacific species of the genus &lt;i&gt;Porites&lt;/i&gt;. This empirically determined relationship has been used to reconstruct past sea-surface temperature (SST) from modern and Holocene age coral archives. A study was conducted to investigate this relationship for &lt;i&gt;Porites&lt;/i&gt; &lt;i&gt;astreoides&lt;/i&gt; to determine the potential for using these corals as a paleotemperature archive in the Caribbean and western tropical Atlantic Ocean. Skeletal aragonite from a&lt;i&gt; P. astreoides&lt;/i&gt; colony growing offshore of the southeast coast of Florida was subsampled with a mean temporal resolution of 14 samples per year and analyzed for Sr/Ca. The resulting Sr/Ca time series yielded well-defined annual cycles that correspond to annual growth bands in the coral. Sr/Ca was regressed against a monthly SST record from C-MAN buoy station FWYF1 (located at Fowey Rocks, Florida), resulting in the following Sr/Ca-SST relationship: Sr/Ca = &amp;ndash;0.040*SST + 10.128 (R = &amp;ndash;0.77). A 10-year time series of Sr/Ca-derived SST yields annual cycles with a 10&amp;ndash;12 degree Celsius seasonal amplitude, consistent with available local instrumental records. We conclude that Sr/Ca in&lt;i&gt; Porites&lt;/i&gt; &lt;i&gt;astreoides&lt;/i&gt; from the Caribbean/Atlantic region has high potential for developing subannually resolved modern and recent Holocene SST records.&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/ofr20151182</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>The relationship between the ratio of strontium to calcium and sea-surface temperature in a modern &lt;i&gt;Porites astreoides&lt;/i&gt; coral: Implications for using &lt;i&gt;P. astreoides&lt;/i&gt; as a paleoclimate archive</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>