Unknown
PANGAEA
In:
Supplement to: Wilkens, Roy H; Christensen, Nikolas I; Slater, L (1983): High-pressure seismic studies of Leg 69 and 70 basalts. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 683-686, https://doi.org/10.2973/dsdp.proc.69.142.1983
Publication Date:
2024-01-04
Description:
Shear-wave and compressional-wave velocities of 26 basalt samples collected at Site 504 during Deep Sea Drilling Project Legs 69 and 70 were measured at elevated confining pressures. The young basalts have higher velocities than average DSDP basalts, because of their lack of alteration. Measurements of sample porosity are combined with laboratory and in situ velocity measurements to yield estimates of total crustal porosity: 13% at the top of Layer 2, and very low porosity below a depth of 2.0 km.
Keywords:
69-504A; 69-504B; 69-505B; 70-504B; Bulk modulus; Deep Sea Drilling Project; Density, wet bulk; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg69; Leg70; Longitude of event; Multi-Sensor Core Logger (MSCL), GEOTEK; North Pacific/GRABEN; Poisson's ratio; Porosity; Pressure; Sample code/label; see reference(s); Shear modulus; Velocity, compressional/shear wave ratio; Velocity, compressional wave; Velocity, shear wave
Type:
Dataset
Format:
text/tab-separated-values, 2320 data points
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