<?xml version="1.0" encoding="utf-8"?>
<!--
    *****************************************************************************
    * This XML file was generated by ET_Redux.                                  *
    * For more info, visit https://CIRDLES.org                                  *
    *****************************************************************************
-->
<Aliquot  xmlns="https://raw.githubusercontent.com/EARTHTIME/Schema"
        xmlns:xs="http://www.w3.org/2001/XMLSchema"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="https://raw.githubusercontent.com/EARTHTIME/Schema
                            https://raw.githubusercontent.com/EARTHTIME/Schema/master/AliquotXMLSchema.xsd">
  <keyWordsCSV></keyWordsCSV>
  <mySESARSampleMetadata>
    <stratigraphicFormationName>NONE</stratigraphicFormationName>
    <stratigraphicGeologicAgeMa>NONE ( 0 Ma - 0 Ma )</stratigraphicGeologicAgeMa>
    <stratigraphicMinAbsoluteAgeMa>0.0</stratigraphicMinAbsoluteAgeMa>
    <stratigraphicMaxAbsoluteAgeMa>0.0</stratigraphicMaxAbsoluteAgeMa>
    <detritalType>NONE</detritalType>
  </mySESARSampleMetadata>
  <analysisPurpose>SingleAge</analysisPurpose>
  <sampleIGSN>SSR.NMM000006</sampleIGSN>
  <aliquotIGSN>Deprecated</aliquotIGSN>
  <aliquotName>zircon</aliquotName>
  <laboratoryName>MIT Isotope Lab</laboratoryName>
  <analystName>Noah McLean</analystName>
  <aliquotComment>NONE</aliquotComment>
  <aliquotReference>NONE</aliquotReference>
  <aliquotInstrumentalMethod>ID-TIMS</aliquotInstrumentalMethod>
  <aliquotInstrumentalMethodReference>NONE</aliquotInstrumentalMethodReference>
  <calibrationUnct206-238>0.0000</calibrationUnct206-238>
  <calibrationUnct208-232>0.0000</calibrationUnct208-232>
  <calibrationUnct207-206>0.0000</calibrationUnct207-206>
  <analysisImages>
    <AnalysisImage>
      <imageType>concordia</imageType>
      <imageURL>http://www.geochronportal.org/uploadimages/19983-concordia-tempConcordia.svg</imageURL>
    </AnalysisImage>
  </analysisImages>
  <mineralStandardModels/>
  <sampleDateModels>
    <SampleDateModel>
      <name>weighted mean 206Pb/238U (Th-corrected)</name>
      <value>49377251.822236172854900360107421875</value>
      <uncertaintyType>ABS</uncertaintyType>
      <oneSigma>16124.201898060642633936367928981781005859375</oneSigma>
      <meanSquaredWeightedDeviation>1.0457746886552945486670296304509975016117095947265625</meanSquaredWeightedDeviation>
      <internalTwoSigmaUnct>32248.40379612128526787273585796356201171875</internalTwoSigmaUnct>
      <internalTwoSigmaUnctWithTracerCalibrationUnct>40491.938734355950145982205867767333984375</internalTwoSigmaUnctWithTracerCalibrationUnct>
      <internalTwoSigmaUnctWithTracerCalibrationAndDecayConstantUnct>66494.89122250428772531449794769287109375</internalTwoSigmaUnctWithTracerCalibrationAndDecayConstantUnct>
      <includedFractionsVector>
        <fractionID>s5z</fractionID>
        <fractionID>s10</fractionID>
        <fractionID>s21</fractionID>
        <fractionID>zS11</fractionID>
      </includedFractionsVector>
      <explanation>Explanation</explanation>
      <comment>Comment</comment>
      <preferred>true</preferred>
    </SampleDateModel>
  </sampleDateModels>
  <pbBlanks>
    <PbBlankICModel>
      <modelName>Matt TPB 3-2-11</modelName>
      <versionNumber>1</versionNumber>
      <minorVersionNumber>0</minorVersionNumber>
      <labName>Unknown Lab</labName>
      <dateCertified>2016-01-20</dateCertified>
      <reference>No reference</reference>
      <comment>No comment</comment>
      <ratios>
        <ValueModel>
          <name>r206_204b</name>
          <value>18.638</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.3535</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_204b</name>
          <value>15.494</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.2245</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r208_204b</name>
          <value>37.748</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.6135</oneSigma>
        </ValueModel>
      </ratios>
      <rhos>
        <entry>
          <string>rhoR207_204b__r208_204b</string>
          <big-decimal>0.331</big-decimal>
        </entry>
        <entry>
          <string>rhoR206_204b__r207_204b</string>
          <big-decimal>0.178</big-decimal>
        </entry>
        <entry>
          <string>rhoR206_204b__r208_204b</string>
          <big-decimal>0.329</big-decimal>
        </entry>
      </rhos>
    </PbBlankICModel>
  </pbBlanks>
  <tracers>
    <TracerUPbModel>
      <modelName>ET535</modelName>
      <versionNumber>3</versionNumber>
      <minorVersionNumber>0</minorVersionNumber>
      <tracerType>mixed 205-233-235</tracerType>
      <labName>EARTHTIME</labName>
      <dateCertified>2012-07-09</dateCertified>
      <reference>No reference</reference>
      <comment>EARTHTIME-supplied model</comment>
      <ratios>
        <ValueModel>
          <name>r204_205t</name>
          <value>0.00009</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000009</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r206_205t</name>
          <value>0.000388739872278295</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00016886001521521</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_205t</name>
          <value>0.000296068587594844</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000140143894670955</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r208_205t</name>
          <value>0.000744376162255465</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000347037829188955</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r233_235t</name>
          <value>0.9950621757</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0000538364810724104</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_235t</name>
          <value>0.0030799297</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000000395548132250173</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>concPb205t</name>
          <value>0.0000000000103116</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000000000000025779</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>concU235t</name>
          <value>0.00000000103356161714094</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000259506527095644</oneSigma>
        </ValueModel>
      </ratios>
      <rhos>
        <entry>
          <string>rhoR206_205t__concU235t</string>
          <big-decimal>-0.000625524583951292</big-decimal>
        </entry>
        <entry>
          <string>rhoR204_205t__r207_205t</string>
          <big-decimal>0.989936347334727</big-decimal>
        </entry>
        <entry>
          <string>rhoR207_205t__concU235t</string>
          <big-decimal>-0.000637072197103421</big-decimal>
        </entry>
        <entry>
          <string>rhoR233_235t__concU235t</string>
          <big-decimal>0.0329317147303595</big-decimal>
        </entry>
        <entry>
          <string>rhoR204_205t__r206_205t</string>
          <big-decimal>0.981367466390299</big-decimal>
        </entry>
        <entry>
          <string>rhoR238_235t__concU235t</string>
          <big-decimal>-0.0213714959352477</big-decimal>
        </entry>
        <entry>
          <string>rhoR233_235t__r238_235t</string>
          <big-decimal>-0.593855080520382</big-decimal>
        </entry>
        <entry>
          <string>rhoR206_205t__r208_205t</string>
          <big-decimal>0.988226606955946</big-decimal>
        </entry>
        <entry>
          <string>rhoR208_205t__concU235t</string>
          <big-decimal>-0.000564938004436441</big-decimal>
        </entry>
        <entry>
          <string>rhoR204_205t__r208_205t</string>
          <big-decimal>0.975476664128529</big-decimal>
        </entry>
        <entry>
          <string>rhoConcPb205t__concU235t</string>
          <big-decimal>0.995699056887309</big-decimal>
        </entry>
        <entry>
          <string>rhoR204_205t__concU235t</string>
          <big-decimal>-0.000601507547689546</big-decimal>
        </entry>
        <entry>
          <string>rhoR207_205t__r208_205t</string>
          <big-decimal>0.992617413594994</big-decimal>
        </entry>
        <entry>
          <string>rhoR206_205t__r207_205t</string>
          <big-decimal>0.992109313058621</big-decimal>
        </entry>
      </rhos>
    </TracerUPbModel>
  </tracers>
  <alphaPbModels>
    <ValueModel>
      <name>MIT Daly</name>
      <value>0.0025</value>
      <uncertaintyType>ABS</uncertaintyType>
      <oneSigma>0.00020</oneSigma>
    </ValueModel>
  </alphaPbModels>
  <alphaUModels/>
  <analysisFractions>
    <AnalysisFraction>
      <isLegacy>false</isLegacy>
      <sampleName>SGC-54</sampleName>
      <fractionID>L1b</fractionID>
      <grainID>L1b</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19976-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
      <staceyKramersOnePctUnct>1.0000</staceyKramersOnePctUnct>
      <staceyKramersCorrelationCoeffs>0.5000</staceyKramersCorrelationCoeffs>
      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
      <alphaPbModelID>MIT Daly</alphaPbModelID>
      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
      <initialPbModelET>
        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
        <ratios>
          <ValueModel>
            <name>r206_204c</name>
            <value>17.89</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.05000000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r207_204c</name>
            <value>15.59</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.0500000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r208_204c</name>
            <value>37.76</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.10000000000000000000</oneSigma>
          </ValueModel>
        </ratios>
        <rhos>
          <entry>
            <string>rhoR206_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
        </rhos>
      </initialPbModelET>
      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
      <analysisMeasures>
        <ValueModel>
          <name>alphaPb</name>
          <value>0.0025</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>alphaU</name>
          <value>0.000991457531099348</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>ar231_235sample</name>
          <value>1.10000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.10000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>pbBlankMassInGrams</name>
          <value>0.00000000000100000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000030000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r18O_16O</name>
          <value>0.002</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r18O_16O_revised</name>
          <value>0.002050</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_235b</name>
          <value>137.8180</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.02200</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_235s</name>
          <value>137.8180</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.02200</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r265_267m</name>
          <value>0.992272971788212</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00290074400048303</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r270_265m</name>
          <value>0.101688627417957</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0102296757936865</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r270_267m</name>
          <value>0.100902874159373</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0103814908684434</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rTh_Umagma</name>
          <value>4.00000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.50000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>tracerMassInGrams</name>
          <value>0.01180</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00010</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>uBlankMassInGrams</name>
          <value>0.00000000000010000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000001000</oneSigma>
        </ValueModel>
      </analysisMeasures>
      <measuredRatios>
        <MeasuredRatioModel>
          <name>r204_205m</name>
          <value>0.00048995928</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.307737009511488</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_204m</name>
          <value>177.145024632</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.30138203461071</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_205m</name>
          <value>0.08675623198</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0470235215414361</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_207m</name>
          <value>8.59806214438</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.111608757287512</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_208m</name>
          <value>3.67497549078</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0886479720322888</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r207_204m</name>
          <value>20.6034359224</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.298064250814325</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r207_205m</name>
          <value>0.01009079194</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.115760081465809</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_204m</name>
          <value>48.2044262968</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.307605304474498</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_205m</name>
          <value>0.02360710416</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0800024745636989</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r233_235m</name>
          <value>0.996227088643509</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00290074400048303</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_233m</name>
          <value>0.101688627417957</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0102296757936865</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_235m</name>
          <value>0.101304962865611</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0103814908684434</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
      </measuredRatios>
      <radiogenicIsotopeRatios>
        <ValueModel>
          <name>r206_238r</name>
          <value>0.00801104365703040</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000015141650094169072</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r206_238r_Th</name>
          <value>0.00802664771352569</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0000151308152547445</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r</name>
          <value>0.0463304915444854</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0011551445015511213</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r_Pa</name>
          <value>0.0463262816546096</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0011551532354240129</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r_Th</name>
          <value>0.0462404236066219</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0011530026303120905</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r_ThPa</name>
          <value>0.0462362219009048</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0011530113385911393</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_235r</name>
          <value>0.0511519211597526</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.001291849445583611</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_235r_Pa</name>
          <value>0.0511472731634149</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0012918578071617007</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r208_206r</name>
          <value>0.100923261505672</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r__r207_235r</name>
          <value>0.20666090624186373</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r__r207_235r_Pa</name>
          <value>0.20665956862459964</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r</name>
          <value>0.20583722060534415</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r_Pa</name>
          <value>0.20583588831940344</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r__r238_206r</name>
          <value>-0.13352463151457877</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r_Pa__r238_206r</name>
          <value>-0.13353051040374025</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r_Th__r238_206r_Th</name>
          <value>-0.13287984674066533</value>
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        <ValueModel>
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      <radiogenicIsotopeDates>
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        <ValueModel>
          <name>age206_238r_Th</name>
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        <ValueModel>
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        <ValueModel>
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        <ValueModel>
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        <ValueModel>
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        <ValueModel>
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        <ValueModel>
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      <compositionalMeasures>
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        <ValueModel>
          <name>totCommonPbMass</name>
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    <AnalysisFraction>
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      <sampleName>SGC-54</sampleName>
      <fractionID>s5z</fractionID>
      <grainID>s5z</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19977-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
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      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
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      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
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        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
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          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
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          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
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      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
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      <compositionalMeasures>
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      <sampleIsochronRatios>
        <ValueModel>
          <name>r206_204tfc</name>
          <value>686.113840417681</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206s</name>
          <value>0.0478165256709610</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r235_207s</name>
          <value>19.7805694490004</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_206s</name>
          <value>130.353516209075</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_207s</name>
          <value>2726.11852032234</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </sampleIsochronRatios>
    </AnalysisFraction>
    <AnalysisFraction>
      <isLegacy>false</isLegacy>
      <sampleName>SGC-54</sampleName>
      <fractionID>s10</fractionID>
      <grainID>s10</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19978-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
      <staceyKramersOnePctUnct>1.0000</staceyKramersOnePctUnct>
      <staceyKramersCorrelationCoeffs>0.5000</staceyKramersCorrelationCoeffs>
      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
      <alphaPbModelID>MIT Daly</alphaPbModelID>
      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
      <initialPbModelET>
        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
        <ratios>
          <ValueModel>
            <name>r206_204c</name>
            <value>17.89</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.05000000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r207_204c</name>
            <value>15.59</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.0500000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r208_204c</name>
            <value>37.76</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.10000000000000000000</oneSigma>
          </ValueModel>
        </ratios>
        <rhos>
          <entry>
            <string>rhoR206_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
        </rhos>
      </initialPbModelET>
      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
      <analysisMeasures>
        <ValueModel>
          <name>alphaPb</name>
          <value>0.0025</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>alphaU</name>
          <value>0.00105974519302898</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>ar231_235sample</name>
          <value>1.10000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.10000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>pbBlankMassInGrams</name>
          <value>0.00000000000100000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000030000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r18O_16O</name>
          <value>0.002</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r18O_16O_revised</name>
          <value>0.002050</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_235b</name>
          <value>137.8180</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.02200</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_235s</name>
          <value>137.8180</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.02200</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r265_267m</name>
          <value>0.990960380081936</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00286928948992682</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r270_265m</name>
          <value>0.303910894854928</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00504140897486540</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r270_267m</name>
          <value>0.301163642484103</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00526082218894102</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rTh_Umagma</name>
          <value>4.00000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.50000</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>tracerMassInGrams</name>
          <value>0.01530</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00010</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>uBlankMassInGrams</name>
          <value>0.00000000000010000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000001000</oneSigma>
        </ValueModel>
      </analysisMeasures>
      <measuredRatios>
        <MeasuredRatioModel>
          <name>r204_205m</name>
          <value>0.000380080975</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.410793781756418</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_204m</name>
          <value>623.56878942</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.419153868680082</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_205m</name>
          <value>0.236816777</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0208131099488559</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_207m</name>
          <value>15.117343363</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.110287412083465</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_208m</name>
          <value>6.3657540746</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.107155958741044</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r207_204m</name>
          <value>41.24997031425</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.425609475072473</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r207_205m</name>
          <value>0.0156681061</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0964324501617632</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_204m</name>
          <value>97.96360559125</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.446239697242184</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_205m</name>
          <value>0.03720874265</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0958503444766992</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r233_235m</name>
          <value>0.994904021952894</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00286928948992683</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_233m</name>
          <value>0.303910894854928</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00504140897486539</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_235m</name>
          <value>0.302362158160797</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00526082218894099</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
      </measuredRatios>
      <radiogenicIsotopeRatios>
        <ValueModel>
          <name>r206_238r</name>
          <value>0.00767981312255856</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000445984530927531</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r206_238r_Th</name>
          <value>0.00769527736939241</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000004460465926061415</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r</name>
          <value>0.0473622854944219</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0003032702755813341</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r_Pa</name>
          <value>0.0473578940318892</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0003033024591980733</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206r_Th</name>
          <value>0.0472671073691455</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0003026967641489854</oneSigma>
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        <ValueModel>
          <name>r207_206r_ThPa</name>
          <value>0.0472627247315917</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0003027288763781019</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_235r</name>
          <value>0.0501290237310098</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00032681007451453546</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_235r_Pa</name>
          <value>0.0501243757346722</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.0003268431254809426</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r208_206r</name>
          <value>0.111510526191085</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r__r207_235r</name>
          <value>0.23944529889327468</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r__r207_235r_Pa</name>
          <value>0.23942108575273996</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r</name>
          <value>0.23843894605379828</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r_Pa</name>
          <value>0.2384148346774779</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r__r238_206r</name>
          <value>-0.15305925826473077</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r_Pa__r238_206r</name>
          <value>-0.15305142874136973</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r_Th__r238_206r_Th</name>
          <value>-0.1521862517901853</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rhoR207_206r_ThPa__r238_206r_Th</name>
          <value>-0.1521785034659008</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </radiogenicIsotopeRatios>
      <radiogenicIsotopeDates>
        <ValueModel>
          <name>age206_238r</name>
          <value>49318120.72421864</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>28530.898086213598</oneSigma>
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        <ValueModel>
          <name>age206_238r_Th</name>
          <value>49417049.1475952</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>28534.430447713254</oneSigma>
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        <ValueModel>
          <name>age207_206r</name>
          <value>66462402.5043721</value>
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          <oneSigma>15246795.442884518</oneSigma>
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        <ValueModel>
          <name>age207_206r_Pa</name>
          <value>66241677.2017408</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>15250457.879440876</oneSigma>
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        <ValueModel>
          <name>age207_206r_Th</name>
          <value>61671880.0424963</value>
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          <oneSigma>15262320.041177223</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>age207_206r_ThPa</name>
          <value>61450956.1990233</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>15265986.833575679</oneSigma>
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        <ValueModel>
          <name>age207_235r</name>
          <value>49665468.2074971</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>315996.80019953864</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>age207_235r_Pa</name>
          <value>49660973.9910240</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>316030.15638473246</oneSigma>
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        <ValueModel>
          <name>bestAge</name>
          <value>49318120.72421864</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>28530.898086213598</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>percentDiscordance</name>
          <value>25.7954589875466000</value>
          <uncertaintyType>NONE</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </radiogenicIsotopeDates>
      <compositionalMeasures>
        <ValueModel>
          <name>massPb_rib</name>
          <value>0.0000000000094216666076182462088949843569958000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>massU</name>
          <value>0.00000000114086418004690028377399653400</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>radToCommonTotal</name>
          <value>12.6780528902788</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rTh_Usample</name>
          <value>0.348314372787425</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>totCommonPbMass</name>
          <value>0.0000000000006888163602813955469243813684250000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>totRadiogenicPbMass</name>
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          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
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      </compositionalMeasures>
      <sampleIsochronRatios>
        <ValueModel>
          <name>r206_204tfc</name>
          <value>819.767736825682</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206s</name>
          <value>0.0473622854944219</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r235_207s</name>
          <value>19.9485233418061</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_206s</name>
          <value>130.211501769830</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_207s</name>
          <value>2749.26558992103</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </sampleIsochronRatios>
    </AnalysisFraction>
    <AnalysisFraction>
      <isLegacy>false</isLegacy>
      <sampleName>SGC-54</sampleName>
      <fractionID>s21</fractionID>
      <grainID>s21</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19979-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
      <staceyKramersOnePctUnct>1.0000</staceyKramersOnePctUnct>
      <staceyKramersCorrelationCoeffs>0.5000</staceyKramersCorrelationCoeffs>
      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
      <alphaPbModelID>MIT Daly</alphaPbModelID>
      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
      <initialPbModelET>
        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
        <ratios>
          <ValueModel>
            <name>r206_204c</name>
            <value>17.89</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.05000000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r207_204c</name>
            <value>15.59</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.0500000000000000000</oneSigma>
          </ValueModel>
          <ValueModel>
            <name>r208_204c</name>
            <value>37.76</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.10000000000000000000</oneSigma>
          </ValueModel>
        </ratios>
        <rhos>
          <entry>
            <string>rhoR206_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
        </rhos>
      </initialPbModelET>
      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
      <analysisMeasures>
        <ValueModel>
          <name>alphaPb</name>
          <value>0.0025</value>
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          <name>alphaU</name>
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          <oneSigma>0</oneSigma>
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          <name>ar231_235sample</name>
          <value>1.10000</value>
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          <oneSigma>0.10000</oneSigma>
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        <ValueModel>
          <name>pbBlankMassInGrams</name>
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          <oneSigma>0.00000000000030000</oneSigma>
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        <ValueModel>
          <name>r18O_16O</name>
          <value>0.002</value>
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          <oneSigma>0.000020</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r18O_16O_revised</name>
          <value>0.002050</value>
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          <oneSigma>0.000020</oneSigma>
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        <ValueModel>
          <name>r238_235b</name>
          <value>137.8180</value>
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        <ValueModel>
          <name>r238_235s</name>
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        <ValueModel>
          <name>r265_267m</name>
          <value>0.990164206721851</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00477630809858385</oneSigma>
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        <ValueModel>
          <name>r270_265m</name>
          <value>0.445966921726296</value>
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        <ValueModel>
          <name>r270_267m</name>
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        <ValueModel>
          <name>rTh_Umagma</name>
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          <oneSigma>0.50000</oneSigma>
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        <ValueModel>
          <name>tracerMassInGrams</name>
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        <ValueModel>
          <name>uBlankMassInGrams</name>
          <value>0.00000000000010000</value>
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          <oneSigma>0.00000000000001000</oneSigma>
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      </analysisMeasures>
      <measuredRatios>
        <MeasuredRatioModel>
          <name>r204_205m</name>
          <value>0.00051229552</value>
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          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r206_204m</name>
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          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
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          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r206_207m</name>
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          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r206_208m</name>
          <value>6.3079003937</value>
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          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r207_204m</name>
          <value>44.332380746</value>
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          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r207_205m</name>
          <value>0.0228325245444444</value>
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          <oneSigma>0.119917196052265</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_204m</name>
          <value>107.830794932</value>
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          <oneSigma>0.370837705343758</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r208_205m</name>
          <value>0.0551622514</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0517061887918964</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r233_235m</name>
          <value>0.994101501620865</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00477630809858385</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
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        <MeasuredRatioModel>
          <name>r238_233m</name>
          <value>0.445966921726296</value>
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          <oneSigma>0.00668443960710478</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_235m</name>
          <value>0.443336340337965</value>
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          <oneSigma>0.00716456973728082</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
      </measuredRatios>
      <radiogenicIsotopeRatios>
        <ValueModel>
          <name>r206_238r</name>
          <value>0.00766934251249207</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000004581899483083342</oneSigma>
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        <ValueModel>
          <name>r206_238r_Th</name>
          <value>0.00768477012789606</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000004581995863072508</oneSigma>
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        <ValueModel>
          <name>r207_206r</name>
          <value>0.0473313229707863</value>
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          <oneSigma>0.00029791520241605977</oneSigma>
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        <ValueModel>
          <name>r207_206r_Pa</name>
          <value>0.0473269255127862</value>
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          <oneSigma>0.0002979483381300563</oneSigma>
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        <ValueModel>
          <name>r207_206r_Th</name>
          <value>0.0472363026337816</value>
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          <oneSigma>0.0002973558843263934</oneSigma>
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        <ValueModel>
          <name>r207_206r_ThPa</name>
          <value>0.0472319140039299</value>
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          <oneSigma>0.00029738894610130114</oneSigma>
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        <ValueModel>
          <name>r207_235r</name>
          <value>0.0500279515624707</value>
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          <oneSigma>0.0003240425100437803</oneSigma>
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        <ValueModel>
          <name>r207_235r_Pa</name>
          <value>0.0500233035661330</value>
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          <oneSigma>0.0003240758432611538</oneSigma>
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        <ValueModel>
          <name>r208_206r</name>
          <value>0.114279956994968</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r__r207_235r</name>
          <value>0.34477534729326953</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r__r207_235r_Pa</name>
          <value>0.3447398850030815</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r</name>
          <value>0.3439405521612303</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r_Pa</name>
          <value>0.343905175734917</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR207_206r__r238_206r</name>
          <value>-0.2598264216581951</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR207_206r_Pa__r238_206r</name>
          <value>-0.25980634825377513</value>
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        <ValueModel>
          <name>rhoR207_206r_Th__r238_206r_Th</name>
          <value>-0.25912214377630116</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR207_206r_ThPa__r238_206r_Th</name>
          <value>-0.2591021402499638</value>
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          <oneSigma>0</oneSigma>
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      </radiogenicIsotopeRatios>
      <radiogenicIsotopeDates>
        <ValueModel>
          <name>age206_238r</name>
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        <ValueModel>
          <name>age206_238r_Th</name>
          <value>49349832.0183181</value>
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          <oneSigma>29312.185704996373</oneSigma>
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        <ValueModel>
          <name>age207_206r</name>
          <value>64905520.9154572</value>
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          <oneSigma>14991909.942444026</oneSigma>
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        <ValueModel>
          <name>age207_206r_Pa</name>
          <value>64684285.0337778</value>
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        <ValueModel>
          <name>age207_206r_Th</name>
          <value>60118419.3348691</value>
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        <ValueModel>
          <name>age207_206r_ThPa</name>
          <value>59896984.5352096</value>
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          <oneSigma>15011030.637676325</oneSigma>
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        <ValueModel>
          <name>age207_235r</name>
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        <ValueModel>
          <name>age207_235r_Pa</name>
          <value>49563240.8952219</value>
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          <oneSigma>313384.5868941432</oneSigma>
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        <ValueModel>
          <name>bestAge</name>
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        <ValueModel>
          <name>percentDiscordance</name>
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          <uncertaintyType>NONE</uncertaintyType>
          <oneSigma>0</oneSigma>
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      </radiogenicIsotopeDates>
      <compositionalMeasures>
        <ValueModel>
          <name>massPb_rib</name>
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        <ValueModel>
          <name>massU</name>
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        <ValueModel>
          <name>radToCommonTotal</name>
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        <ValueModel>
          <name>rTh_Usample</name>
          <value>0.356964420044543</value>
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        <ValueModel>
          <name>totCommonPbMass</name>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>totRadiogenicPbMass</name>
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      <sampleIsochronRatios>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>r207_206s</name>
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        <ValueModel>
          <name>r235_207s</name>
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        <ValueModel>
          <name>r238_206s</name>
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        <ValueModel>
          <name>r238_207s</name>
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          <oneSigma>0</oneSigma>
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      </sampleIsochronRatios>
    </AnalysisFraction>
    <AnalysisFraction>
      <isLegacy>false</isLegacy>
      <sampleName>SGC-54</sampleName>
      <fractionID>zS1</fractionID>
      <grainID>zS1</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19980-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
      <staceyKramersOnePctUnct>1.0000</staceyKramersOnePctUnct>
      <staceyKramersCorrelationCoeffs>0.5000</staceyKramersCorrelationCoeffs>
      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
      <alphaPbModelID>MIT Daly</alphaPbModelID>
      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
      <initialPbModelET>
        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
        <ratios>
          <ValueModel>
            <name>r206_204c</name>
            <value>17.89</value>
            <uncertaintyType>ABS</uncertaintyType>
            <oneSigma>0.05000000000000000000</oneSigma>
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          <ValueModel>
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            <value>37.76</value>
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        </ratios>
        <rhos>
          <entry>
            <string>rhoR206_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
        </rhos>
      </initialPbModelET>
      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
      <analysisMeasures>
        <ValueModel>
          <name>alphaPb</name>
          <value>0.0025</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00020</oneSigma>
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        <ValueModel>
          <name>alphaU</name>
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        <ValueModel>
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        <ValueModel>
          <name>pbBlankMassInGrams</name>
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        <ValueModel>
          <name>r18O_16O</name>
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          <name>r18O_16O_revised</name>
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        <ValueModel>
          <name>r238_235s</name>
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          <name>r265_267m</name>
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        <ValueModel>
          <name>r270_265m</name>
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        <ValueModel>
          <name>r270_267m</name>
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          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00691192647045418</oneSigma>
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        <ValueModel>
          <name>rTh_Umagma</name>
          <value>4.00000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.50000</oneSigma>
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        <ValueModel>
          <name>tracerMassInGrams</name>
          <value>0.01040</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00010</oneSigma>
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        <ValueModel>
          <name>uBlankMassInGrams</name>
          <value>0.00000000000010000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.00000000000001000</oneSigma>
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      </analysisMeasures>
      <measuredRatios>
        <MeasuredRatioModel>
          <name>r204_205m</name>
          <value>0.000470001</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.359831846235907</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r206_204m</name>
          <value>686.483572894915</value>
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          <oneSigma>0.392163232389777</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_205m</name>
          <value>0.322167393014286</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.02585147925365</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r206_207m</name>
          <value>15.4272064740678</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0813060683371126</oneSigma>
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          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r206_208m</name>
          <value>9.22795440202532</value>
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          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r207_204m</name>
          <value>44.4992789930509</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.394476335827574</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r207_205m</name>
          <value>0.0208942081186441</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.0819341916740639</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r208_204m</name>
          <value>74.4234748477966</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.398391696193897</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
          <name>r208_205m</name>
          <value>0.034925</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.056758992030305</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>false</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r233_235m</name>
          <value>0.994276841309688</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00392886661079608</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
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        <MeasuredRatioModel>
          <name>r238_233m</name>
          <value>0.380716540904138</value>
          <uncertaintyType>PCT</uncertaintyType>
          <oneSigma>0.00697996653680168</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
        <MeasuredRatioModel>
          <name>r238_235m</name>
          <value>0.378537615222557</value>
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          <oneSigma>0.00691192647045419</oneSigma>
          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
        </MeasuredRatioModel>
      </measuredRatios>
      <radiogenicIsotopeRatios>
        <ValueModel>
          <name>r206_238r</name>
          <value>0.00833532281623366</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0.000005219505242113661</oneSigma>
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        <ValueModel>
          <name>r206_238r_Th</name>
          <value>0.00835141740259918</value>
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          <oneSigma>0.000005216501225722924</oneSigma>
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        <ValueModel>
          <name>r207_206r</name>
          <value>0.0470110149327396</value>
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          <oneSigma>0.0002844510395192344</oneSigma>
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        <ValueModel>
          <name>r207_206r_Pa</name>
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          <oneSigma>0.0002844805252651143</oneSigma>
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        <ValueModel>
          <name>r207_206r_Th</name>
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        <ValueModel>
          <name>r207_206r_ThPa</name>
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          <oneSigma>0.00028396930143071764</oneSigma>
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        <ValueModel>
          <name>r207_235r</name>
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        <ValueModel>
          <name>r207_235r_Pa</name>
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        <ValueModel>
          <name>r208_206r</name>
          <value>0.0638387846687755</value>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r__r207_235r</name>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r__r207_235r_Pa</name>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r</name>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR206_238r_Th__r207_235r_Pa</name>
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          <oneSigma>0</oneSigma>
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        <ValueModel>
          <name>rhoR207_206r__r238_206r</name>
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        <ValueModel>
          <name>rhoR207_206r_Pa__r238_206r</name>
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        <ValueModel>
          <name>rhoR207_206r_Th__r238_206r_Th</name>
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        <ValueModel>
          <name>rhoR207_206r_ThPa__r238_206r_Th</name>
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          <oneSigma>0</oneSigma>
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      </radiogenicIsotopeRatios>
      <radiogenicIsotopeDates>
        <ValueModel>
          <name>age206_238r</name>
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        <ValueModel>
          <name>age206_238r_Th</name>
          <value>53613133.0734554</value>
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        <ValueModel>
          <name>age207_206r</name>
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        <ValueModel>
          <name>age207_206r_Pa</name>
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        <ValueModel>
          <name>age207_206r_Th</name>
          <value>44103390.1121024</value>
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        <ValueModel>
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        <ValueModel>
          <name>age207_235r</name>
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        <ValueModel>
          <name>age207_235r_Pa</name>
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        <ValueModel>
          <name>bestAge</name>
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        <ValueModel>
          <name>percentDiscordance</name>
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      </radiogenicIsotopeDates>
      <compositionalMeasures>
        <ValueModel>
          <name>massPb_rib</name>
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        <ValueModel>
          <name>massU</name>
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        <ValueModel>
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        <ValueModel>
          <name>rTh_Usample</name>
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        <ValueModel>
          <name>totCommonPbMass</name>
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        <ValueModel>
          <name>totRadiogenicPbMass</name>
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        <ValueModel>
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        <ValueModel>
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      </sampleIsochronRatios>
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    <AnalysisFraction>
      <isLegacy>false</isLegacy>
      <sampleName>SGC-54</sampleName>
      <fractionID>zs3</fractionID>
      <grainID>zs3</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19981-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
      <mineralName>zircon</mineralName>
      <settingType>grain mount</settingType>
      <numberOfGrains>1</numberOfGrains>
      <estimatedDate>0.0</estimatedDate>
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      <staceyKramersCorrelationCoeffs>0.5000</staceyKramersCorrelationCoeffs>
      <physicallyAbraded>false</physicallyAbraded>
      <leachedInHFAcid>false</leachedInHFAcid>
      <annealedAndChemicallyAbraded>true</annealedAndChemicallyAbraded>
      <chemicallyPurifiedUPb>true</chemicallyPurifiedUPb>
      <analysisFractionComment>NONE</analysisFractionComment>
      <pbBlankID>Matt TPB 3-2-11 v.1.0</pbBlankID>
      <tracerID>ET535 v.3.0</tracerID>
      <fractionationCorrectedPb>false</fractionationCorrectedPb>
      <alphaPbModelID>MIT Daly</alphaPbModelID>
      <fractionationCorrectedU>false</fractionationCorrectedU>
      <alphaUModelID>#NONE#</alphaUModelID>
      <initialPbModelET>
        <modelName>05-48A Plag Pbc final</modelName>
        <versionNumber>1</versionNumber>
        <minorVersionNumber>0</minorVersionNumber>
        <labName>Unknown Lab</labName>
        <dateCertified>2012-07-11</dateCertified>
        <reference>Stacey, J. C. and Kramers, J., 1975. EPSL 26, pp. 207-221</reference>
        <comment>No comment</comment>
        <ratios>
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        </ratios>
        <rhos>
          <entry>
            <string>rhoR206_204c__r208_204c</string>
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          </entry>
          <entry>
            <string>rhoR207_204c__r208_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
          <entry>
            <string>rhoR206_204c__r207_204c</string>
            <big-decimal>0.5</big-decimal>
          </entry>
        </rhos>
      </initialPbModelET>
      <pbCollectorType>NONE</pbCollectorType>
      <uCollectorType>NONE</uCollectorType>
      <analysisMeasures>
        <ValueModel>
          <name>alphaPb</name>
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          <oneSigma>0.00020</oneSigma>
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        <ValueModel>
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      <measuredRatios>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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          <oxideCorr>false</oxideCorr>
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        <MeasuredRatioModel>
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        <MeasuredRatioModel>
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          <oxideCorr>true</oxideCorr>
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        <MeasuredRatioModel>
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          <oxideCorr>true</oxideCorr>
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        <MeasuredRatioModel>
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          <fracCorr>false</fracCorr>
          <oxideCorr>true</oxideCorr>
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      </measuredRatios>
      <radiogenicIsotopeRatios>
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        <ValueModel>
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        <ValueModel>
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      <grainID>zS11</grainID>
      <zircon>true</zircon>
      <imageURL URL="http://www.geochronportal.org/uploadimages/19982-photo-TempThumbnail.jpg"/>
      <timeStamp>January 23, 2016 4:36 PM</timeStamp>
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        <labName>Unknown Lab</labName>
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        <comment>No comment</comment>
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        </ValueModel>
        <ValueModel>
          <name>age207_235r_Pa</name>
          <value>48892341.0921704</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>547195.2140968492</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>bestAge</name>
          <value>49273993.0058043</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>43371.959218412725</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>percentDiscordance</name>
          <value>-61.849599617170000</value>
          <uncertaintyType>NONE</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </radiogenicIsotopeDates>
      <compositionalMeasures>
        <ValueModel>
          <name>massPb_rib</name>
          <value>0.0000000000054659954151872801284830518113236000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>massU</name>
          <value>0.00000000065577565753600335364096653000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>radToCommonTotal</name>
          <value>6.92581741023092</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>rTh_Usample</name>
          <value>0.179579920513445</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>totCommonPbMass</name>
          <value>0.000000000000689644377642561642114058056240000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>totRadiogenicPbMass</name>
          <value>0.0000000000047763510375447184863689937550836000</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </compositionalMeasures>
      <sampleIsochronRatios>
        <ValueModel>
          <name>r206_204tfc</name>
          <value>478.166236809912</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r207_206s</name>
          <value>0.0466534153615123</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r235_207s</name>
          <value>20.2698349351195</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_206s</name>
          <value>130.328560358971</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
        <ValueModel>
          <name>r238_207s</name>
          <value>2793.54811108830</value>
          <uncertaintyType>ABS</uncertaintyType>
          <oneSigma>0</oneSigma>
        </ValueModel>
      </sampleIsochronRatios>
    </AnalysisFraction>
  </analysisFractions>
  <physicalConstantsModelII>
    <modelName>EARTHTIME Physical Constants Model</modelName>
    <versionNumber>1</versionNumber>
    <minorVersionNumber>0</minorVersionNumber>
    <labName>EARTHTIME</labName>
    <dateCertified>2008-01-01</dateCertified>
    <reference>See individual constants for reference.</reference>
    <comment>This Physical Constants Model is the accepted default as of 2008. We certify it as D2 for the U-series work.</comment>
    <ratios>
      <ValueModelReferenced>
        <name>lambda230</name>
        <value>0.0000091577</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.15244</oneSigma>
        <reference>Cheng et al. 2000</reference>
      </ValueModelReferenced>
      <ValueModelReferenced>
        <name>lambda231</name>
        <value>0.0000211887</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.33578</oneSigma>
        <reference>Robert et al. 1969</reference>
      </ValueModelReferenced>
      <ValueModelReferenced>
        <name>lambda232</name>
        <value>0.0000000000493343</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.042769</oneSigma>
        <reference>Holden 1990</reference>
      </ValueModelReferenced>
      <ValueModelReferenced>
        <name>lambda234</name>
        <value>0.0000028262</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.100842120161347</oneSigma>
        <reference>Cheng et al. 2000</reference>
      </ValueModelReferenced>
      <ValueModelReferenced>
        <name>lambda235</name>
        <value>0.00000000098485</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.068031</oneSigma>
        <reference>Jaffey et al. 1971</reference>
      </ValueModelReferenced>
      <ValueModelReferenced>
        <name>lambda238</name>
        <value>0.000000000155125</value>
        <uncertaintyType>PCT</uncertaintyType>
        <oneSigma>0.053505</oneSigma>
        <reference>Jaffey et al. 1971</reference>
      </ValueModelReferenced>
    </ratios>
    <rhos/>
    <atomicMolarMasses>
      <entry>
        <string>gmol235</string>
        <big-decimal>235.043922</big-decimal>
      </entry>
      <entry>
        <string>gmol204</string>
        <big-decimal>203.973028</big-decimal>
      </entry>
      <entry>
        <string>gmol205</string>
        <big-decimal>204.9737</big-decimal>
      </entry>
      <entry>
        <string>gmol238</string>
        <big-decimal>238.050785</big-decimal>
      </entry>
      <entry>
        <string>gmol206</string>
        <big-decimal>205.974449</big-decimal>
      </entry>
      <entry>
        <string>gmol207</string>
        <big-decimal>206.975880</big-decimal>
      </entry>
      <entry>
        <string>gmol208</string>
        <big-decimal>207.976636</big-decimal>
      </entry>
    </atomicMolarMasses>
  </physicalConstantsModelII>
</Aliquot>