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Geological sample
8
Sample code/label
6
GEOS
4
Lead-206/Lead-204 ratio
4
Lead-207/Lead-206 ratio
4
Nordaustlandet
4
Svalbard
4
206Pb/207Pb Lead-Lead
2
Age
2
Age, 206Pb/207Pb Lead-Lead
2
Age, dated
2
Aluminium oxide
2
Calcium oxide
2
Calculated from weight loss after ignition at 450 °C
2
Comment
2
Error
2
Figure
2
Lead
2
Lead-206/Lead-207 ratio
2
Lead-206/Uranium-238 ratio
2
Lead-207/Lead-206
2
Lead-207/Lead-206, standard error
2
Lead-207/Uranium-235 ratio
2
Lead-208/Lead-206 ratio
2
Loss on ignition
2
Magnesium oxide
2
Manganese oxide
2
Mass
2
Measured
2
Potassium oxide
2
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