Table 1. Bulk and grain density measurements, calculated porosity, and high-pressure P- and S-wave velocity measurements for samples from Hole 990A.
| Core,
section, interval (cm) |
Bulk density (g cm-3) |
Grain
density (g cm-3) |
Porosity (%) | Mode | Velocity (km s-1) - pressure (MPa) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | |||||
990A-6R-3, 135-137 |
2750 |
2820 |
6.9 |
P-wave |
4.723 |
4.827 |
4.937 |
5.005 |
5.055 |
5.096 |
5.131 |
5.161 |
5.208 |
5.208 |
5.208 |
S-wave |
2.753 |
2.795 |
2.839 |
2.865 |
2.883 |
2.898 |
2.910 |
2.921 |
2.930 |
2.938 |
2.945 |
||||
990A-7R-5, 7-9 |
2860 |
2900 |
3.8 |
P-wave |
5.467 |
5.532 |
5.605 |
5.654 |
5.692 |
5.723 |
5.750 |
5.773 |
5.793 |
5.812 |
5.828 |
S-wave |
3.092 |
3.124 |
3.160 |
3.183 |
3.199 |
3.212 |
3.222 |
3.230 |
3.236 |
3.242 |
3.247 |
||||
990A-10R-1, 12-14 |
2850 |
2880 |
3.0 |
P-wave |
5.622 |
5.666 |
5.720 |
5.756 |
5.783 |
5.805 |
5.822 |
5.836 |
5.847 |
5.857 |
5.865 |
S-wave |
3.200 |
3.226 |
3.258 |
3.278 |
3.292 |
3.302 |
3.309 |
3.315 |
3.319 |
3.323 |
3.326 |
||||
990A-10R-4, 101-103 |
2860 |
2880 |
2.5 |
P-wave |
5.836 |
5.941 |
5.982 |
6.027 |
6.064 |
6.094 |
6.120 |
6.143 |
6.163 |
6.182 |
6.198 |
S-wave |
3.157 |
3.188 |
3.226 |
3.252 |
3.271 |
3.285 |
3.296 |
3.305 |
3.312 |
3.318 |
3.323 |
||||
990A-11R-1, 79-81 |
2870 |
2890 |
2.1 |
P-wave |
5.895 |
5.941 |
5.992 |
6.025 |
6.052 |
6.074 |
6.094 |
6.111 |
6.127 |
6.141 |
6.154 |
S-wave |
3.382 |
3.416 |
3.457 |
3.481 |
3.497 |
3.507 |
3.514 |
3.520 |
3.524 |
3.527 |
3.530 |
||||
990A-12R-1, 125-127 |
2690 |
2750 |
6.1 |
P-wave |
4.907 |
4.982 |
5.063 |
5.116 |
5.156 |
5.189 |
5.217 |
5.242 |
5.265 |
5.285 |
5.303 |
S-wave |
2.896 |
2.926 |
2.962 |
2.985 |
3.000 |
3.010 |
3.017 |
3.023 |
3.027 |
3.030 |
3.032 |
||||
990A-13R-4, 36-38 |
2780 |
2810 |
3.6 |
P-wave |
5.461 |
5.536 |
5.623 |
5.674 |
5.702 |
5.726 |
5.741 |
5.752 |
5.760 |
5.767 |
5.773 |
S-wave |
3.057 |
3.091 |
3.125 |
3.146 |
3.161 |
3.173 |
3.183 |
3.191 |
3.198 |
3.205 |
3.210 |
||||
990A-14R-2, 94-96 |
2690 |
2740 |
4.3 |
P-wave |
5.244 |
5.321 |
5.417 |
5.453 |
5.532 |
5.572 |
5.603 |
5.629 |
5.650 |
5.668 |
5.683 |
S-wave |
2.990 |
3.028 |
3.067 |
3.091 |
3.108 |
3.121 |
3.132 |
3.142 |
3.150 |
3.158 |
3.164 |
||||
990A-15R-2, 101-103 |
2890 |
2910 |
2.6 |
P-wave |
5.915 |
5.956 |
6.000 |
6.027 |
6.045 |
6.059 |
6.070 |
6.078 |
6.086 |
6.092 |
6.098 |
S-wave |
3.312 |
3.333 |
3.354 |
3.366 |
3.374 |
3.381 |
3.387 |
3.391 |
3.396 |
3.399 |
3.403 |
||||
990A-17R-4, 62-64 |
2760 |
2810 |
4.4 |
P-wave |
5.198 |
5.267 |
5.342 |
5.401 |
5.432 |
5.452 |
5.466 |
5.476 |
5.483 |
5.488 |
5.493 |
S-wave |
2.934 |
2.960 |
2.984 |
2.998 |
3.009 |
3.017 |
3.024 |
3.030 |
3.036 |
3.041 |
3.045 |
||||