Table T6. SEM analyses of two epidote crystals from the drill bit samples of Hole U1362A. Multiple spots within each crystal were analyzed for major oxides.
|
Major element oxide (wt%)
|
Epidote A
|
Epidote B
|
|||||
|---|---|---|---|---|---|---|---|
|
1
|
2
|
3
|
4
|
1
|
2
|
3
|
|
| SiO2 | 37.3 | 38.2 | 37.2 | 37.0 | 42.5 | 42.1 | 42.4 |
| Al2O3 | 18.9 | 18.8 | 18.7 | 19.3 | 22.3 | 22.2 | 22.4 |
| Fe2O3 | 17.4 | 17.0 | 17.8 | 17.6 | 11.8 | 12.2 | 12.5 |
| MnO | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.2 |
| MgO | 0.8 | 0.6 | 0.3 | 0.8 | 0.9 | 1.2 | 0.9 |
| CaO | 24.0 | 24.2 | 24.1 | 23.8 | 20.2 | 19.9 | 20.0 |
| Na2O | 0.1 | 0.1 | 0.3 | 0.4 | 1.0 | 1.2 | 0.7 |
| PO4 | 1.2 | 0.8 | 0.6 | 0.8 | 0.7 | 0.4 | 0.7 |
| K2O | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.3 | 0.2 |
| TiO2 | 0.1 | 0.1 | 0.5 | 0.2 | 0.1 | 0.3 | 0.0 |
|
Totals:
|
100.0 | 100.0 | 99.5 | 100.0 | 100.0 | 100.0 | 100.0 |
Previous | Close | Next | Top of page