Fountain, David M; Carlson, Richard L; Salisbury, Matthew H; Christensen, Nikolas I (1975): (Table 1) Compressional wave velocities for rocks from DSDP Hole 31-293 in the Philippine Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.762353, Supplement to: Fountain, DM et al. (1975): Possible lower crustal rocks recovered on Leg 31 by deep-sea drilling in the Philippine Sea. Marine Geology, 19(5), M75-M80, https://doi.org/10.1016/0025-3227(75)90081-X
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Abstract:
Compressional wave velocities measured in gabbroic rocks and metabasites recovered from Site 293 of Leg 31 in the Philippine Sea (on the Central Basin Fault) are correlative with seismic velocities determined for Layer 3. The lower crustal origin for these rocks suggested by this data is further supported by the similarity between these samples, dredge haul samples from fracture zones in the main ocean basins and rocks found in ophiolite complexes. These plutonic rocks were possibly introduced to the sea floor by movements along the Central Basin Fault, a major tectonic feature in the Philippine Sea, or formed as part of new ocean crust within a leaky transform fault.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 20.354200 * Longitude: 124.094200
Date/Time Start: 1973-07-01T00:00:00 * Date/Time End: 1973-07-01T00:00:00
Minimum Elevation: -5599.0 m * Maximum Elevation: -5599.0 m
Event(s):
31-293 * Latitude: 20.354200 * Longitude: 124.094200 * Date/Time: 1973-07-01T00:00:00 * Elevation: -5599.0 m * Penetration: 563.5 m * Recovery: 71.5 m * Location: North Pacific/Philippine Sea/BASIN * Campaign: Leg31 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 171 m cored; 22 m drilled; 41.8 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Fountain, David M | DSDP/ODP/IODP sample designation | ||
| 2 | Density, wet bulk | WBD | g/cm3 | Fountain, David M | ||
| 3 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 0.2 kbar | |
| 4 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 0.4 kbar | |
| 5 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 0.6 kbar | |
| 6 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 0.8 kbar | |
| 7 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 1.0 kbar | |
| 8 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 2.0 kbar | |
| 9 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 4.0 kbar | |
| 10 | Velocity, compressional wave | Vp | m/s | Fountain, David M | 6.0 kbar |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
68 data points
Data
| 1 Sample label | 2 WBD [g/cm3] | 3 Vp [m/s] (0.2 kbar) | 4 Vp [m/s] (0.4 kbar) | 5 Vp [m/s] (0.6 kbar) | 6 Vp [m/s] (0.8 kbar) | 7 Vp [m/s] (1.0 kbar) | 8 Vp [m/s] (2.0 kbar) | 9 Vp [m/s] (4.0 kbar) | 10 Vp [m/s] (6.0 kbar) |
|---|---|---|---|---|---|---|---|---|---|
| 31-293-18-1,90-93 | 2.828 | 6210 | 6230 | 6250 | 6260 | 6270 | 6330 | 6440 | 6530 |
| 31-293-19-1,108-111 | 2.848 | 6510 | 6530 | 6550 | 6570 | 6580 | 6630 | 6700 | 6740 |
| 31-293-20-1,100-103 | 2.853 | 6490 | 6560 | 6620 | 6670 | 6710 | 6800 | 6860 | |
| 31-293-20-1,136-139 | 2.832 | 6800 | 6850 | 6890 | 6930 | 6950 | 7020 | 7100 | 7160 |
| 31-293-21-1,5-8 | 2.939 | 6800 | 6830 | 6850 | 6870 | 6880 | 6950 | 7050 | 7100 |
| 31-293-21-1,32-35 | 2.938 | 6770 | 6820 | 6850 | 6880 | 6910 | 7000 | 7070 | |
| 31-293-21-2,11-14 | 2.933 | 6990 | 7010 | 7030 | 7050 | 7060 | 7110 | 7170 | 7230 |