Table T5 (continued). (Continued on next page.)
| Unit | Relative abundance of rock types | Subophitic texture | Proportion | Remarks |
|---|---|---|---|---|
| VI: Compound olivine gabbro | Olivine gabbro and troctolite common. Gabbronorite absent. Decreasing oxide gabbro. | Common | 35% | |
| VII: Gabbronorite and oxide gabbronorite | Gabbronorite, oxide gabbronorite, and oxide gabbro are common. Major fault at 560 mbsf divides Subunits VIIA and VIIB. Olivine gabbro absent in top of Subunit VIIB. | Absent in Subunit VIIA, present in VIIB | 5% | |
| VIII: Olivine gabbro | Olivine gabbro abundant. Gabbronoritic rocks make up 25% of unit, the majority being oxide rich. | Common | 27% | Pegmatic intervals common. |
| IX: Gabbronorite and gabbro | Olivine gabbro absent. Gabbronorite abundant at top of unit, decreasing to zero at bottom. Oxide gabbro and gabbronorite present. | Absent | 0% | Small size of intervals. Absence of pegmatic gabbro and microgabbro intervals. |
| X: Olivine gabbro and gabbro | Olivine gabbro dominating and gabbro common. Oxide gabbro rare. | Occurs | 10% | Microgabbros abundant at top of unit. |
| XI: Olivine gabbro | Olivine gabbro predominant, oxide gabbro present throughout. | Rare | 4% | Olivine gabbro intervals relatively large? Abundant oxide gabbro intrusion around 1020 m. |
| XII: Olivine gabbro and troctolitic gabbro | Olivine gabbro >90 vol%. Troctolitic gabbro present. | Common | 21% | Abundant microgabbros 1310-1390 m. |
| Total |