Table T3. Summary of the textures observed in the basement, sorted by depth range, with resistivity ranges and preliminary interpretations, Hole C0012H.
|
Depth range (mbsf) |
Thickness (m) |
Deep resistivity (Ωm) |
Texture | Preliminary interpretation |
|---|---|---|---|---|
| 530.30−531.80 | 1.50 | 2−4 | Turtleshell | Pillow basalt |
| 531.80−534.30 | 2.50 | 3−10 | Subvertical fractures | Sheet flow with cooling joints |
| 534.30−535.75 | 1.45 | 2−4 | Turtleshell | Pillow basalt |
| 535.75−537.50 | 1.75 | 3−7 | Subvertical fractures | Sheet flow with cooling joints |
| 537.50−554.70 | 17.70 | 2−5 | Turtleshell | Pillow basalt |
| 554.70−557.00 | 2.30 | 2−4 | Mottled | Volcaniclastics? |
| 557.00−566.60 | 9.60 | 2−7 | Turtleshell | Pillow basalt |
| 566.60−570.50 | 3.90 | 0−2 | Homogeneous | Sediments? |
| 570.50−571.80 | 1.30 | 2−4 | Subvertical fractures | Sheet flow with cooling joints |
| 571.80−572.70 | 0.90 | 0−3 | NA | Breakout? |
| 572.70−576.50 | 3.80 | 3−12 | Mottled | Volcaniclastics? |
| 576.50−595.50 | 19.00 | 8−37 | Subvertical fractures | Sheet flow with cooling joints |
| 595.50−596.80 | 1.30 | 3−8 | Turtleshell? | Pillow basalt |
| 596.80−604.00 | 7.20 | 8−26 | Subvertical fractures | Sheet flow with cooling joints |
| 604.00−613.25 | 9.25 | 2−7 | Mottled and turtleshell | Volcaniclastics?, pillows |
| 613.25−617.25 | 4.00 | 4−13 | Homogeneous | Solid sheet flow, DITF? |
| 617.25−642.75 | 25.50 | 5−24 | Turtleshell and mottled | Pillows, volcaniclastics? |
| 642.75−644.30 | 1.55 | 4−28 | Homogeneous | Solid sheet flow |
| 644.30−650.10 | 5.80 | 7−18 | Turtleshell | Pillow basalt |
| 650.10−651.25 | 1.15 | 12−29 | Homogeneous | Solid sheet flow |
| 651.25−656.20 | 4.95 | 5−22 | Turtleshell | Pillow basalt |
| 656.20−678.00 | 21.80 | 5−32 | Subvertical fractures | Sheet flow with cooling joints, DITF? |
| 678.00−684.25 | 6.25 | 8−45 | Subvertical fractures | Sheet flow with cooling joints |
| 684.25−686.80 | 2.55 | 6−17 | Turtleshell | Pillow basalt |
| 686.80−689.25 | 2.45 | 6−13 | Mottled and turtleshell | Volcaniclastics?, pillows |
| 689.25−694.70 | 5.45 | 6−10 | Mottled | Volcaniclastics? |
| 694.70−697.50 | 2.80 | 6−15 | Turtleshell | Pillow basalt |
| 697.50−700.25 | 2.75 | 8−37 | Subvertical fractures | Sheet flow with cooling joints, DITF? |
| 700.25−701.40 | 1.15 | 8−17 | Turtleshell | Pillow basalt |
| 701.40−703.00 | 1.60 | 10−35 | Homogeneous | Solid sheet flow |
| 703.00−704.70 | 1.70 | 4−8 | Mottled | Volcaniclastics? |
| 704.70−708.40 | 3.70 | 5−10 | Turtleshell | Pillow basalt |
DITF = drilling-induced tensile fracture. NA = not applicable.
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