<?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>Hannah M. Carroll</dc:contributor>
  <dc:contributor>Robert N. Ulrich</dc:contributor>
  <dc:contributor>Ben M. Elliott</dc:contributor>
  <dc:contributor>Tyler B. Coplen</dc:contributor>
  <dc:contributor>Robert A. Eagle</dc:contributor>
  <dc:contributor>Aradhna K. Tripati</dc:contributor>
  <dc:creator>Jamie K Lucarelli</dc:creator>
  <dc:date>2023</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;Carbonate clumped isotope geochemistry has primarily focused on mass spectrometric determination of&amp;nbsp;&lt;/span&gt;&lt;i&gt;m/z&lt;/i&gt;&lt;span&gt;&amp;nbsp;47 CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;for geothermometry, but theoretical calculations and recent experiments indicate paired analysis of the&amp;nbsp;&lt;/span&gt;&lt;i&gt;m/z&lt;/i&gt;&lt;span&gt;&amp;nbsp;47 (&lt;/span&gt;&lt;sup&gt;13&lt;/sup&gt;&lt;span&gt;C&lt;/span&gt;&lt;sup&gt;18&lt;/sup&gt;&lt;span&gt;O&lt;/span&gt;&lt;sup&gt;16&lt;/sup&gt;&lt;span&gt;O) and&amp;nbsp;&lt;/span&gt;&lt;i&gt;m/z&lt;/i&gt;&lt;span&gt;&amp;nbsp;48 (&lt;/span&gt;&lt;sup&gt;12&lt;/sup&gt;&lt;span&gt;C&lt;/span&gt;&lt;sup&gt;18&lt;/sup&gt;&lt;span&gt;O&lt;/span&gt;&lt;sup&gt;18&lt;/sup&gt;&lt;span&gt;O) isotopologues (referred to as Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;) can be used to study non-equilibrium isotope fractionations and refine temperature estimates. We utilize 5,448 Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and 3,400 Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;&amp;nbsp;replicate measurements of carbonate samples and standards, and 183 Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and 195 Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;&amp;nbsp;replicate measurements of gas standards from 2015 to 2021 from a multi-year and multi-instrument data set to constrain Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;&amp;nbsp;values for 27 samples and standards, including Devils Hole cave calcite, and study equilibrium Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;-Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;, Δ&lt;/span&gt;&lt;sub&gt;47&lt;/sub&gt;&lt;span&gt;-temperature, and Δ&lt;/span&gt;&lt;sub&gt;48&lt;/sub&gt;&lt;span&gt;-temperature relationships. We compare results to previously published findings and calculate equilibrium regressions based on data from multiple laboratories. We report acid digestion fractionation factors, Δ*&lt;/span&gt;&lt;sub&gt;63-47&lt;/sub&gt;&lt;span&gt;&amp;nbsp;and Δ*&lt;/span&gt;&lt;sub&gt;64-48&lt;/sub&gt;&lt;span&gt;, and account for their dependence on the initial clumped isotope values of the mineral.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1029/2022GC010458</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>American Geophysical Union</dc:publisher>
  <dc:title>Equilibrated gas and carbonate standard-derived dual (Δ47 and Δ48) clumped isotope values</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>