@article{20100614092846281.stokeshi,
 author={{1909-7}},
 title={Hand specimen with quantity 0.275 kg at \nolinkurl{/ISEI/stone storage/Room B/A/A-4/Cameroon 5002/}},
 journal={\href{http://dream.misasa.okayama-u.ac.jp/?q=20100614092846281.stokeshi}{DREAM}},
 volume={19},
 pages={20100614092846281.stokeshi},
 year={2010},
 url={http://dream.misasa.okayama-u.ac.jp/?q=20100614092846281.stokeshi},
}

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<acquisitions>
  <acquisition>
    <global_id>20190524111532-828788</global_id>
    <name>1909-7_Mg#</name>
    <device/>
    <technique>100Mg/(Mg+Fe2+)</technique>
    <operator></operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description></description>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Mg#</nickname>
        <value>50.6</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190522153216-971526</global_id>
    <name>1909-7</name>
    <device>XRF PANalytical PW2400</device>
    <technique>XRF procedures of Takei (2002)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description/>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>SiO2</nickname>
        <value>45.5</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>TiO2</nickname>
        <value>3.43</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Al2O3</nickname>
        <value>15.8</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>MnO</nickname>
        <value>0.21</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>MgO</nickname>
        <value>5.44</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Na2O</nickname>
        <value>4.24</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>K2O</nickname>
        <value>1.7</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>P2O5</nickname>
        <value>0.83</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>total</nickname>
        <value>99.5</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Cr2O3</nickname>
        <value>97.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>NiO</nickname>
        <value>54.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>CaO</nickname>
        <value>10.54</value>
        <unit>%</unit>
        <uncertainty/>
        <label></label>
        <info></info>
      </analysis>
      <analysis>
        <nickname>LOI</nickname>
        <value>-0.69</value>
        <unit>%</unit>
        <uncertainty/>
        <label></label>
        <info></info>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190522153239-227025</global_id>
    <name>1909-7_Fe2O3</name>
    <device/>
    <technique>calculation from Fe2O3 total</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description></description>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Fe2O3</nickname>
        <value>12.4</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524144309-426906</global_id>
    <name>1909-7_Pb</name>
    <device>TIMS Finnigan MAT261, MAT262 and Triton TI</device>
    <technique>Pb isotopes_procedures of Kuritani and Nakamura (2002, 2003)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description></description>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Pb206zPb204</nickname>
        <value>20.426</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pb207zPb204</nickname>
        <value>15.663</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pb208zPb204</nickname>
        <value>40.197</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524122238-176663</global_id>
    <name>1909-7</name>
    <device>Q-ICPMS Agilent 7500cs</device>
    <technique>Q-ICP-MS_procedures of Makishima and Nakamura (1997, 1999, 2006)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description></description>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Li</nickname>
        <value>7.61</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Rb</nickname>
        <value>43.1</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Sr</nickname>
        <value>1267.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Y</nickname>
        <value>39.7</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Cs</nickname>
        <value>0.497</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ba</nickname>
        <value>528.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>La</nickname>
        <value>79.2</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ce</nickname>
        <value>165.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pr</nickname>
        <value>19.1</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Nd</nickname>
        <value>74.4</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Sm</nickname>
        <value>12.9</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Eu</nickname>
        <value>3.98</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Gd</nickname>
        <value>10.4</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Tb</nickname>
        <value>1.45</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Dy</nickname>
        <value>7.34</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ho</nickname>
        <value>1.35</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Er</nickname>
        <value>3.16</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Tm</nickname>
        <value>0.43</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Yb</nickname>
        <value>2.69</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Lu</nickname>
        <value>0.359</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pb</nickname>
        <value>3.78</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524122319-473129</global_id>
    <name>1909-7</name>
    <device>Q-ICPMS Agilent 7500cs</device>
    <technique>Q-ICP-MS_procedures of Lu et al. (2007)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description/>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>B</nickname>
        <value>2.75</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Zr</nickname>
        <value>388.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Hf</nickname>
        <value>7.92</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Nb</nickname>
        <value>105.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ta</nickname>
        <value>5.67</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524144102-094341</global_id>
    <name>1909-7_Nd</name>
    <device>TIMS Finnigan MAT261, MAT262 and Triton TI</device>
    <technique>Nd isotopes_procedures of Nakamura et al. (1991, 2003)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description></description>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Nd143zNd144</nickname>
        <value>0.512798</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524144405-022001</global_id>
    <name>1909-7</name>
    <device>TIMS Finnigan MAT261, MAT262 and Triton TI</device>
    <technique>Sr isotopes_procedures of Yoshikawa and Nakamura (1993)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description/>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Sr87zSr86</nickname>
        <value>0.703219</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524153540-500937</global_id>
    <name>1909-7</name>
    <device>TIMS Thermo-Fisher MAT262</device>
    <technique>U-Series_procedures of Yokoyama et al. (1999, 2001, 2003)</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description/>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Th</nickname>
        <value>8.345</value>
        <unit>ug/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U</nickname>
        <value>2.266</value>
        <unit>ug/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Th230zTh232</nickname>
        <value>0.991</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U238zTh232</nickname>
        <value>0.824</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Th230zU238</nickname>
        <value>1.203</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U234zU238</nickname>
        <value>1.001</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190524155211-837694</global_id>
    <name>1909-7</name>
    <device>TIMS Thermo-Fisher MAT262</device>
    <technique>TIMS with total evaporation</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100614092846281.stokeshi</sample_global_id>
    <sample_name>1909-7</sample_name>
    <description/>
    <place>
      <global_id>20190626114829-644854</global_id>
      <name>locality of 1909-7</name>
      <longitude>9.25277777777778</longitude>
      <latitude>4.23055555555556</latitude>
      <elevation>2000.0</elevation>
      <description>Mt. Cameroon volcano, 1909 eruption, NE flank of a crater</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Ra226</nickname>
        <value>1041.0</value>
        <unit>fg/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ra226zTh230</nickname>
        <value>1.131</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
</acquisitions>