Christensen, Nikolas I; Wilkens, Roy H; Blair, S C; Carlson, Richard L (1981): Compressional and shear wave velocities and elastic constants at DSDP Leg 59 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.820750, Supplement to: Christensen, NI et al. (1981): Seismic velocities, densities, and elastic constants of volcanic breccias and basalt from Deep Sea Drilling Project Leg 59. In: Kroenke, L; Scott, R; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 59, 515-517, https://doi.org/10.2973/dsdp.proc.59.110.1981
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Abstract:
Prior to the Deep Sea Drilling Project the composition of the oceanic crust could only be inferred from seismic-refraction and gravity data and the recovery of a wide variety of dredged rocks. Through the success of the Deep Sea Drilling Project, it is now clear that the top of oceanic Layer 2 usually consists of basalt. Several laboratory studies (e.g., Fox et al., 1972; Christensen and Shaw, 1970; Hyndman and Drury, 1976) have demonstrated that the seismic velocities of oceanic basalt are similar to velocities reported from refraction studies of Layer 2 and that the variability in Layer 2 velocities has many causes, the most important being fracturing and sea-floor alteration produced by the interaction of basalt and sea water (Christensen and Salisbury, 1973).
To date, most reported measurements of velocities in oceanic basalts are from samples obtained from the main ocean basins. With the exception of an earlier study of velocities and related elastic properties of a suite of rocks from DSDP Sites 292, 293, 294, and 296 located in the Philippine Sea (Christensen et al., 1975; Fountain et al., 1975), elastic properties have not been determined for oceanic rocks from marginal basins. In this chapter compressional- and shear-wave velocities and elastic constants are reported at elevated confining pressures for basalt and volcanic breccias from Holes 447A, 448, and 448A.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 17.149955 * Median Longitude: 134.108262 * South-bound Latitude: 16.341000 * West-bound Longitude: 133.289500 * North-bound Latitude: 18.014700 * East-bound Longitude: 134.874200
Date/Time Start: 1978-02-06T00:00:00 * Date/Time End: 1978-02-13T00:00:00
Event(s):
59-447 * Latitude: 18.014700 * Longitude: 133.289500 * Date/Time: 1978-02-06T00:00:00 * Elevation: -6022.0 m * Penetration: 9 m * Recovery: 0.4 m * Location: North Pacific/Philippine Sea/BASIN * Campaign: Leg59 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 9 m cored; 0 m drilled; 4.4 % recovery
59-447A * Latitude: 18.014700 * Longitude: 133.289500 * Date/Time: 1978-02-06T00:00:00 * Elevation: -6022.0 m * Penetration: 296.5 m * Recovery: 154.5 m * Location: North Pacific/Philippine Sea/BASIN * Campaign: Leg59 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 36 cores; 287 m cored; 9.5 m drilled; 53.8 % recovery
59-448 * Latitude: 16.341000 * Longitude: 134.874200 * Date/Time: 1978-02-13T00:00:00 * Elevation: -3483.0 m * Penetration: 584.5 m * Recovery: 234.1 m * Location: North Pacific/Philippine Sea/RIDGE * Campaign: Leg59 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 57 cores; 518 m cored; 66.5 m drilled; 45.2 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Christensen, NI; Wilkens, RH; Blair, SC et al. (1981): (Table 2) Elastic constants at DSDP Leg 59 Holes. https://doi.org/10.1594/PANGAEA.820749
- Christensen, NI; Wilkens, RH; Blair, SC et al. (1981): (Table 1) Compressional and shear wave velocities at DSDP Leg 59 Holes. https://doi.org/10.1594/PANGAEA.820748