Table T11. Moisture and density, P-wave velocity measurements, and main petrology characteristics for discrete samples, Hole U1382A.
Core, section, interval (cm) |
Depth (mbsf) |
MAD | P-wave velocity (m/s) | Petrology | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bulk density (g/cm3) | Dry density (g/cm3) | Grain density (g/cm3) | Porosity (%) | Void ratio |
|||||||||||||
x | y | z | All axes | Alteration (%) | Vesicles | Lith. unit |
Main lithology |
Description | |||||||||
Top | Bottom | Mean | SD | ||||||||||||||
336-U1382A- | |||||||||||||||||
3R-1W, 9–11 | 113.39 | 113.41 | 2.91 | 2.86 | 3.00 | 4.55 | 0.05 | 5783 | 5909 | 5886 | 5859 | 67 | 10 | 0 | 1–4 | Aphyric fine- to medium-grained basalt | Massive flow |
3R-2W, 100–102 | 115.8 | 115.82 | 2.85 | 2.78 | 3.00 | 7.52 | 0.08 | 5997 | — | — | 5997 | — | 17* | 0 | |||
3R-3W, 27–29 | 116.46 | 116.48 | 2.88 | 2.82 | 2.99 | 5.91 | 0.06 | 5818 | 5807 | 5813 | 5813 | 6 | 16* | 0 | |||
3R-3W, 69–71 | 116.88 | 116.9 | 2.92 | 2.87 | 3.00 | 4.31 | 0.05 | 5961 | 5938 | 5847 | 5915 | 60 | 10 | 0 | |||
3R-3W, 130–132 | 117.49 | 117.51 | 2.92 | 2.88 | 2.99 | 3.65 | 0.04 | 5989 | 5955 | 5929 | 5958 | 30 | 2 | 0 | |||
3R-4W, 96–98 | 118.56 | 118.58 | 2.92 | 2.88 | 3.00 | 3.86 | 0.04 | 5968 | 5987 | 5959 | 5972 | 15 | 3.5* | 0 | |||
5R-3W, 29–30 | 135.45 | 135.46 | 2.88 | 2.84 | 2.97 | 4.45 | 0.05 | 7380 | 7436 | 7289 | 7368 | 75 | 1.5* | 2 | 2–16 | Aphyric cryptocrystalline basalt | Pillow flow |
6R-3W, 26–28 | 144.48 | 144.5 | 2.90 | 2.86 | 2.97 | 3.48 | 0.04 | 6015 | 5970 | 5988 | 6040 | 28 | 1.5* | 0 | 3 | Aphyric medium-grained basalt | Massive flow |
6R-3W, 63–65 | 144.85 | 144.87 | 2.88 | 2.83 | 2.97 | 4.59 | 0.05 | 5920 | 5768 | 5756 | 5991 | 23 | 5 | 0 | |||
6R-3W, 75–77 | 144.97 | 144.99 | 2.90 | 2.86 | 2.96 | 3.35 | 0.03 | 6022 | 6073 | 6026 | 5815 | 91 | 5 | 0 | |||
7R-1W, 123–125 | 152.93 | 152.95 | 2.89 | 2.87 | 2.92 | 1.86 | 0.02 | 7141 | 7204 | 7179 | 7175 | 32 | 8* | 0 | 4–7 | Aphyric cryptocrystalline basalt | Pillow flow |
9R-1W, 102–104 | 171.92 | 171.94 | 3.01 | 2.98 | 3.09 | 3.58 | 0.04 | 6559 | 6410 | 6800 | 6590 | 196 | 30* | 0 | 5–5 | Harzburgite | Coarse- and medium-grained granular to porphyroclastic |
9R-2W, 130–132 | 173.65 | 173.67 | 2.78 | 2.72 | 2.88 | 5.43 | 0.06 | 5778 | 5831 | 5864 | 5824 | 44 | 1 | 2 | 6–2 | Moderately to highly phyric microcrystalline to fine-grained basalt | Massive flow |
9R-3W, 19–21 | 173.99 | 174.01 | 2.78 | 2.72 | 2.87 | 5.20 | 0.05 | 5944 | 6010 | 6002 | 5985 | 36 | 2* | 0 | |||
10R-1W, 34–36 | 180.84 | 180.86 | 2.85 | 2.81 | 2.91 | 3.44 | 0.04 | 6477 | 6514 | 6502 | 6498 | 19 | 1 | 3 | |||
10R-1W, 88–90 | 181.38 | 181.4 | 2.83 | 2.79 | 2.90 | 3.84 | 0.04 | 6416 | 6450 | 6446 | 6437 | 18 | 2 | 2 | |||
10R-1W, 98–100 | 181.48 | 181.5 | 2.83 | 2.80 | 2.89 | 3.10 | 0.03 | 6520 | 6586 | 6645 | 6583 | 63 | 2 | 2 | |||
10R-2W, 49–51 | 182.4 | 182.42 | 2.87 | 2.83 | 2.93 | 3.29 | 0.03 | 6123 | 6084 | 6083 | 6097 | 23 | 1 | 2 | |||
10R-2W, 109–111 | 183 | 183.02 | 2.81 | 2.76 | 2.92 | 5.44 | 0.06 | 5734 | 5778 | 5778 | 5763 | 26 | 15.5* | 1 | |||
10R-3W, 82–85 | 184.17 | 184.2 | 2.88 | 2.85 | 2.94 | 3.17 | 0.03 | 6423 | 6186 | 6528 | 6379 | 176 | 4* | 2 | 6–3 | Moderately to highly phyric microcrystalline to fine-grained basalt | Massive flow |
11R-2W, 49–51 | 191.82 | 191.84 | 2.86 | 2.84 | 2.91 | 2.57 | 0.03 | 6283 | 6260 | 6272 | 6272 | 11 | 4 | 2 | 7–2 | Aphyric cryptocrystalline to microcrystalline basalt | Pillow flow |
12R-1W, 82–83 | 200.52 | 200.53 | 2.88 | 2.85 | 2.92 | 2.32 | 0.02 | 6738 | — | — | 6738 | — | 3* | 1 | 7–5 | Aphyric cryptocrystalline to microcrystalline basalt | Pillow flow |
12R-3W, 31–33 | 202.51 | 202.53 | 2.87 | 2.83 | 2.95 | 4.24 | 0.04 | 5756 | 5676 | 5761 | 5731 | 48 | 2* | 0 | 8 | Aphyric fine- to medium-grained basalt | Massive flow |
* = alteration observed in adjacent thin section. MAD = moisture and density. SD = standard deviation. — = not measured.
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