Table T4. Summary of igneous contacts of rocks based on macroscopic and thin section description, Hole U1415J.
| Unit |
Core, section, interval (cm) |
Thin section number |
Lithologic interval | Contact lithology | Contact type | Contact definition |
|---|---|---|---|---|---|---|
| 345-U1415J- | ||||||
| II | 5R-1, 129–143 (Piece 18) | 38 | 27/28 |
Olivine- and orthopyroxene-bearing gabbro/ Troctolite |
Modal and grain size | Sutured/Sharp |
| Ghost 1 | 7G-1, 26–34 (Piece 5) | 40 | G20/G21 |
Clinopyroxene oikocryst-bearing troctolite/ Gabbronorite |
Modal and grain size | Sutured/Sharp |
| 7G-1, 91–94 (Piece 14) | 42 | G30 | Oikocryst-bearing troctolite/Troctolite | Modal and grain size | Sutured/Sharp | |
| II | 8R-2, 105–122 (Piece 9) | 52 | 42/43 | Olivine gabbro/Olivine-bearing gabbro | Modal and grain size | Sutured/Sharp |
| 8R-3, 31–41 (Piece 7) | 54 | 48 | Gabbro/Olivine gabbro | Modal and grain size | Sutured/Sharp | |
| III | 10R-1, 39–55 (Piece 6B) | 58 | 58/59 | Troctolite/Olivine gabbro | Modal and grain size | Sutured/Gradational |
| 18R-1, 141–146 (Piece 17B) | 72 | 72 | Olivine-rich troctolite/Troctolite | Modal and grain size | Sutured/Sharp | |
| Ghost 2 | 25G-1, 30–38 (Piece 5) | 85 | G69 | Olivine-bearing gabbro/Gabbro | Modal | Sutured/Sharp |
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