@article{20100310094405423.ttsujimori,
 author={{D27}},
 title={Hand specimen with quantity 0.17 kg at \nolinkurl{/ISEI/stone storage/Room B/A/A-4/Cameroon 5003/}},
 journal={\href{http://dream.misasa.okayama-u.ac.jp/?q=20100310094405423.ttsujimori}{DREAM}},
 volume={19},
 pages={20100310094405423.ttsujimori},
 year={2010},
 url={http://dream.misasa.okayama-u.ac.jp/?q=20100310094405423.ttsujimori},
}

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<acquisitions>
  <acquisition>
    <global_id>20190528105900-448074</global_id>
    <name>D27</name>
    <device/>
    <technique>100Mg/(Mg+Fe2+)</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description></description>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Mg#</nickname>
        <value>56.3</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528104345-152802</global_id>
    <name>D27</name>
    <device>XRF PANalytical PW2400</device>
    <technique>XRF procedures of Takei (2002)</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Fe2O3T</nickname>
        <value>13.4</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Fe2O3</nickname>
        <value>1.59</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>FeO</nickname>
        <value>10.62</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>MgO</nickname>
        <value>7.67</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfOr</nickname>
        <value>1.95</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfAb</nickname>
        <value>25.3</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfAn</nickname>
        <value>27.62</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfDiWo</nickname>
        <value>7.48</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfDiEn</nickname>
        <value>3.9</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfDiFs</nickname>
        <value>3.37</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfHyEn</nickname>
        <value>8.55</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfHyFs</nickname>
        <value>7.38</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfOlFo</nickname>
        <value>4.66</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfOlFa</nickname>
        <value>4.43</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfMt</nickname>
        <value>2.31</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfIlm</nickname>
        <value>2.37</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>modeOfAp</nickname>
        <value>0.3</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528110339-024590</global_id>
    <name>D27</name>
    <device>SIRA Thermo-Fisher MAT253</device>
    <technique>IRMS with LF</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>d18O</nickname>
        <value>5.39</value>
        <unit>permil</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528112725-455408</global_id>
    <name>D27</name>
    <device>XRF PANalytical PW2400</device>
    <technique>XRF procedures of Takei (2002)</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>SiO2</nickname>
        <value>50.11</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>TiO2</nickname>
        <value>1.25</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Al2O3</nickname>
        <value>15.4</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Fe2O3T</nickname>
        <value>13.4</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>MnO</nickname>
        <value>0.19</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>MgO</nickname>
        <value>7.67</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>CaO</nickname>
        <value>9.3</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Na2O</nickname>
        <value>2.99</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>K2O</nickname>
        <value>0.33</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>P2O5</nickname>
        <value>0.13</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>LOI</nickname>
        <value>-0.5</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>total</nickname>
        <value>100.4</value>
        <unit>%</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Cr</nickname>
        <value>216.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ni</nickname>
        <value>204.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528115812-502541</global_id>
    <name>D27</name>
    <device>Q-ICPMS Agilent 7500cs</device>
    <technique>Q-ICP-MS_procedures of Makishima and Nakamura (1997, 1999, 2006)</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Li</nickname>
        <value>6.56</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Rb</nickname>
        <value>7.3</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Sr</nickname>
        <value>204.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Y</nickname>
        <value>21.65</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Cs</nickname>
        <value>0.27</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ba</nickname>
        <value>113.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>La</nickname>
        <value>5.49</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ce</nickname>
        <value>12.77</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pr</nickname>
        <value>1.73</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Nd</nickname>
        <value>8.37</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Sm</nickname>
        <value>2.38</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Eu</nickname>
        <value>1.02</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Gd</nickname>
        <value>3.37</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Tb</nickname>
        <value>0.59</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Dy</nickname>
        <value>3.67</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ho</nickname>
        <value>0.77</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Er</nickname>
        <value>1.97</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Tm</nickname>
        <value>0.28</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Yb</nickname>
        <value>1.83</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Lu</nickname>
        <value>0.25</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Pb</nickname>
        <value>1.14</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528150405-566506</global_id>
    <name>D27</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>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Th</nickname>
        <value>0.47</value>
        <unit>ug/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U</nickname>
        <value>0.13</value>
        <unit>ug/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Th230zTh232</nickname>
        <value>0.858</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U238zTh232</nickname>
        <value>0.862</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Th230zU238</nickname>
        <value>0.996</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>U234zU238</nickname>
        <value>0.998</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528115933-034993</global_id>
    <name>D27</name>
    <device>Q-ICPMS Agilent 7500cs</device>
    <technique>Q-ICP-MS_procedures of Lu et al. (2007)</technique>
    <operator>Aka</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>B</nickname>
        <value>0.57</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Zr</nickname>
        <value>71.0</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Hf</nickname>
        <value>1.77</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Nb</nickname>
        <value>5.49</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ta</nickname>
        <value>0.32</value>
        <unit>ppm</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
  <acquisition>
    <global_id>20190528151237-961985</global_id>
    <name>D27</name>
    <device>TIMS Thermo-Fisher MAT262</device>
    <technique>TIMS with total evaporation</technique>
    <operator>Yokoyama</operator>
    <sample_global_id>20100310094405423.ttsujimori</sample_global_id>
    <sample_name>D27</sample_name>
    <description/>
    <place>
      <global_id>20190628142452-327889</global_id>
      <name>Lake Nyos</name>
      <longitude>10.2938055555556</longitude>
      <latitude>6.44527777777778</latitude>
      <elevation/>
      <description>Dam in the northern part of the lake, downstream side of the dam</description>
    </place>
    <chemistries>
      <analysis>
        <nickname>Ra226</nickname>
        <value>45.0</value>
        <unit>fg/g</unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
      <analysis>
        <nickname>Ra226zTh230</nickname>
        <value>1.005</value>
        <unit></unit>
        <uncertainty/>
        <label/>
        <info/>
      </analysis>
    </chemistries>
  </acquisition>
</acquisitions>