Table T7. Porosity, density, and velocity on discrete samples, Hole 1268A.
Core, section,
interval (cm)
Depth
(mbsf)
Volume measured in pycnometer
Sample size
Volume measured with caliper
VP
(km/s)
Primary lithology
Density (Mg/m3)
Porosity
(%)
Density (Mg/m3)
Porosity
(%)
Bulk
Grain
Bulk
Grain
209-1268A-









2R-2, 37–39 15.77 2.66 2.82 8.9 Chip 2.49 2.54 3.3 3.89 Harzburgite
3R-2, 4–6 21.67 2.51 2.86 19.2 Chip 2.39 2.48 6.2 3.02 Harzburgite
4R-1, 16–18 24.96 2.57 2.76 10.8 Chip 2.44 2.49 3.8 3.49 Harzburgite
5R-2, 119–121 32.49 2.49 2.68 11.7 Minicore 2.49 2.57 4.7 3.43 Dunite
6R-1, 49–51 34.89 — — — — 2.58 2.63 3.1 3.64 Harzburgite
8R-1, 123–125 45.23 — — — — 2.67 2.71 2.2 3.40 Harzburgite
10R-2, 87–89 55.91 2.70 2.81 6.2 Chip — — — — Harzburgite
12R-1, 130–132 64.50 2.70 2.83 7.4 Minicore 2.72 2.77 2.7 3.63 Harzburgite
12R-2, 40–42 65.10 2.64 2.84 11.0 Chip 2.65 2.70 2.8 3.37 Harzburgite
13R-1, 77–79 68.97 2.69 2.81 6.7 Chip 2.56 2.60 2.3 3.83 Harzburgite
14R-2, 112–114 75.41 2.46 2.74 16.2 Chip 2.49 2.58 5.5 3.09 Harzburgite
15R-4, 73–75 82.59 2.55 2.63 4.8 Minicore 2.55 2.58 1.9 4.29 Harzburgite
16R-3, 133–135 86.44 2.81 2.91 5.4 Chip 2.69 2.73 2.2 3.59 Harzburgite
17R-1, 18–20 87.58 2.60 2.81 11.5 Chip 2.53 2.62 5.1 3.41 Gabbro
17R-1, 69–71 88.09 — — — — 2.73 2.77 2.2 3.50 Harzburgite
18R-1, 123–125 93.23 2.55 2.87 17.3 Chip 2.40 2.40 2.5 3.54 Dunite
19R-1, 86–88 97.86 2.45 2.58 8.7 Chip — — — — Harzburgite
20R-2, 66–68 103.69 2.50 2.67 10.4 Chip 2.47 2.47 4.1 4.02 Harzburgite
22R-2, 81–82 113.51 2.71 2.85 7.7 Minicore 2.69 2.73 2.8 4.37 Gabbro
23R-1, 63–65 116.83 2.88 2.91 1.4 Minicore 2.82 2.83 0.5 4.93 Gabbronorite
23R-2, 45–47 118.09 2.67 2.86 10.3 Chip — — — — Gabbro
24R-2, 90–92 122.95 2.49 2.54 3.0 Minicore 2.56 2.57 1.2 4.53 Harzburgite
25R-1, 45–47 126.25 2.67 2.86 10.8 Chip 2.58 2.66 5.0 3.03 Harzburgite

Note: This table is also available in ASCII.