Rock type:
|
Number of analyses
|
Plagioclase
|
Olivine
|
Clinopyroxene
|
Orthopyroxene
|
Opaques
|
Amphibole
|
Apatite
|
|---|---|---|---|---|---|---|---|---|
| Troctolite | 9 | 66.6 | 29.6 | 3.4 | 0.2 | 0.2 | 0.1 | Tr |
| Troctolitic microgabbro | 14 | 72.2 | 16.6 | 10.7 | 0.1 | 0.2 | 0.2 | Tr |
| Olivine gabbro | 145 | 59.0 | 9.8 | 30.5 | 0.2 | 0.3 | 0.3 | Tr |
| Olivine microgabbro | 15 | 57.2 | 9.7 | 32.6 | 0.1 | 0.1 | 0.3 | Tr |
| Gabbro | 25 | 58.4 | 3.3 | 37.4 | 0.2 | 0.4 | 0.3 | Tr |
| Gabbronorite | 17 | 64.3 | 2.5 | 27.2 | 4.3 | 1.0 | 0.8 | Tr |
| Fe-Ti oxide gabbro | 9 | 45.1 | 1.7 | 39.5 | 0.7 | 12.2 | 0.6 | 0.2 |
| Fe-Ti oxide microgabbro | 5 | 58.5 | 10.9 | 25.8 | 1.5 | 1.8 | 1.4 | 0.1 |
| Fe-Ti oxide gabbronorite | 32 | 49.2 | 1.0 | 35.4 | 3.0 | 10.6 | 0.5 | 0.4 |
Notes: All data based on point counting of thin sections (Robinson, von Herzen, et al., 1989; Shipboard Scientific Party, 1999; Dick, Natland, Miller, et al., 1999). Tr = trace.