Table T6. Average measured values and 3σ for major elements, Expedition 331.
| Component |
Reference value (100% normalized) |
Measured value (average) |
Standard deviation (3σ) |
Relative standard deviation (%) |
|---|---|---|---|---|
| SiO2 |
50.767
|
50.722
|
0.115
|
0.1
|
| TiO2 |
1.435
|
1.433
|
0.038
|
0.9
|
| Al2O3 |
17.135
|
17.067
|
0.144
|
0.3
|
| Fe2O3 |
11.775
|
11.770
|
0.075
|
0.2
|
| MnO |
0.176
|
0.181
|
0.006
|
1.1
|
| CaO |
9.753
|
9.791
|
0.044
|
0.2
|
| MgO |
5.170
|
5.076
|
0.151
|
1.0
|
| Na2O |
2.720
|
2.747
|
0.177
|
2.1
|
| K2O |
0.777
|
0.752
|
0.019
|
0.8
|
| P2O5 |
0.293
|
0.279
|
0.014
|
1.7
|
Measured values determined on the Supermini (Rigaku) X-ray fluorescence spectrometer from 10 analyses of JB-3 standard.
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