Table T3. Details and explanations for thin sections with two domains, Hole U1415P.
|
Core, section, interval (cm) |
Thin section number | Lithologic interval | Rock name | Rock comment | Nature of domains | Contact |
Number of domains |
Igneous domain |
Domain l lithology name |
|---|---|---|---|---|---|---|---|---|---|
| 345-U1415P- | |||||||||
| 4G-1W, 10–13 (Piece 3) | 98 (image) | G11 | Olivine gabbro | With gabbronoritic band | Two lithologies | 2 | 1 | Olivine gabbro | |
| 2 | Gabbronorite (band) | ||||||||
| 4G-1W, 120–125 (Piece 10) | 101 (image) | G18 | Olivine gabbro |
With bands more troctolitic in character |
Two lithologies | Sutured | 2 | 1 | Troctolite |
| 2 | Olivine-bearing gabbro | ||||||||
| 6R-2W, 119–122 (Piece 14) | 111 (image) | 9 | Troctolite |
With a patch of coarse- grained gabbronorite (only a few mineral grains) |
Two lithologies | Sutured | 2 | 1 | Troctolite |
| 2 | Olivine-bearing norite | ||||||||
| 7R-2W, 41–44 (Piece 2) | 114 (image) | 13 |
Contact between orthopyroxene-bearing olivine gabbro and an enclave |
Two lithologies |
Sutured, sharp |
2 | 1 |
Orthopyroxene-bearing troctolite |
|
| 2 | Anorthosite | ||||||||
| 8R-1W, 80–83 (Piece 6) | 116 (image) | 16 |
Olivine gabbro with a noritic band |
Two lithologies | Sutured | 2 | 1 | Troctolite | |
| 2 | Norite | ||||||||
| 9R-2W, 20–21 (Piece 3) | 119 (image) | G30 |
Orthopyroxene-bearing olivine gabbro |
Contains two different lithologies |
Two lithologies | Sutured | 2 | 1 | Olivine gabbro |
| 2 | Olivine gabbronorite | ||||||||
| 14R-1W, 22–25 (Piece 3) | 127 (image) | 27 |
Contact between very heterogeneous olivine gabbro and an enclave of orthopyroxene- bearing olivine gabbro |
Part of a very heterogeneous, multitextured gabbro |
Two lithologies | Sutured | 2 | 1 |
Orthopyroxene-bearing olivine gabbro |
| 2 | Gabbro | ||||||||
| 16R-1W, 117–120 (Piece 10) | 130 (image) | 29 | Troctolite |
With a subvertical anorthositic vein |
Two lithologies | Sutured | 2 | 1 | Anorthosite |
| 2 | Troctolite | ||||||||
| 18R-1W, 78–83 (Piece 7) | 134 (image) | 29 |
Contact between troctolite and orthopyroxene-bearing olivine gabbro |
Contact between troctolite and orthopyroxene-bearing olivine gabbro |
Two lithologies | Sutured | 2 | 1 | Anorthositic troctolite |
| 2 |
Orthopyroxene-bearing olivine gabbro |
||||||||
| 22R-2W, 113–115 (Piece 8) | 140 (image) | 29/30 |
Contact between troctolite and olivine gabbro |
Two lithologies | Sutured | 2 | 1 | Troctolite | |
| 2 | Olivine gabbro | ||||||||
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