Mean of six EPMA measurements of the skeletal Cpx in the spongy crust, given as cations in atoms per formula unit to 2 significant figures (Fe3+ calculated based on site occupancy according to Lindsley & Andersen, 1983)
| . | Si . | Ti . | Cr . | Al . | Fe3+ . | Fe2+ . | Mn . | Mg . | Ca . | Na . | K . | Sum . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 1.73 | 0.08 | 0.00 | 0.37 | 0.06 | 0.40 | 0.01 | 0.59 | 0.78 | 0.03 | 0.00 | 4.03 |
| 2 s.d. | 0.03 | 0.01 | 0.00 | 0.05 | 0.08 | 0.13 | 0.00 | 0.09 | 0.06 | 0.01 | 0.00 | 0.04 |
| . | Si . | Ti . | Cr . | Al . | Fe3+ . | Fe2+ . | Mn . | Mg . | Ca . | Na . | K . | Sum . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 1.73 | 0.08 | 0.00 | 0.37 | 0.06 | 0.40 | 0.01 | 0.59 | 0.78 | 0.03 | 0.00 | 4.03 |
| 2 s.d. | 0.03 | 0.01 | 0.00 | 0.05 | 0.08 | 0.13 | 0.00 | 0.09 | 0.06 | 0.01 | 0.00 | 0.04 |
2.s.d = Two standard deviations.
Mean of six EPMA measurements of the skeletal Cpx in the spongy crust, given as cations in atoms per formula unit to 2 significant figures (Fe3+ calculated based on site occupancy according to Lindsley & Andersen, 1983)
| . | Si . | Ti . | Cr . | Al . | Fe3+ . | Fe2+ . | Mn . | Mg . | Ca . | Na . | K . | Sum . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 1.73 | 0.08 | 0.00 | 0.37 | 0.06 | 0.40 | 0.01 | 0.59 | 0.78 | 0.03 | 0.00 | 4.03 |
| 2 s.d. | 0.03 | 0.01 | 0.00 | 0.05 | 0.08 | 0.13 | 0.00 | 0.09 | 0.06 | 0.01 | 0.00 | 0.04 |
| . | Si . | Ti . | Cr . | Al . | Fe3+ . | Fe2+ . | Mn . | Mg . | Ca . | Na . | K . | Sum . |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 1.73 | 0.08 | 0.00 | 0.37 | 0.06 | 0.40 | 0.01 | 0.59 | 0.78 | 0.03 | 0.00 | 4.03 |
| 2 s.d. | 0.03 | 0.01 | 0.00 | 0.05 | 0.08 | 0.13 | 0.00 | 0.09 | 0.06 | 0.01 | 0.00 | 0.04 |
2.s.d = Two standard deviations.
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