(Table 1) Summary of densities and compressional-wave velocities at DSDP Hole 72-516F
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1983
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| _version_ | 1867170030246952960 |
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| author | Gebhard, S N Carlson, Richard L |
| author_facet | Gebhard, S N Carlson, Richard L |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Compressional-wave velocities were measured in 9 samples from the 18 m of igneous basement penetrated by drilling at Hole 516F. Wet-bulk densities range from 2.50 to 2.92 g/cm**3; compressional-wave velocities (measured at 0.4 kbar confining pressure) range from 4.29 to 6.32 km/s. Because of progressive alteration, compressional-wave velocities in deep-sea basalts tend to decrease with age; velocities in basalts from immediately beneath the sediment/basement contact are consistent with the proposed age (86 ± 4 Ma) of basement at the site. A very strong vertical velocity gradient of 0.126 km/s/m in the 18-m basement interval reflects a marked decrease in the degree of alteration with depth beneath the contact. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_811466 |
| institution | PANGAEA |
| language | en |
| publishDate | 1983 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Summary of densities and compressional-wave velocities at DSDP Hole 72-516F Gebhard, S N Carlson, Richard L 72-516F; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg72; Pulse transmission technique (Birch, 1960); Sample code/label; South Atlantic/CONT RISE; Velocity, compressional wave Compressional-wave velocities were measured in 9 samples from the 18 m of igneous basement penetrated by drilling at Hole 516F. Wet-bulk densities range from 2.50 to 2.92 g/cm**3; compressional-wave velocities (measured at 0.4 kbar confining pressure) range from 4.29 to 6.32 km/s. Because of progressive alteration, compressional-wave velocities in deep-sea basalts tend to decrease with age; velocities in basalts from immediately beneath the sediment/basement contact are consistent with the proposed age (86 ± 4 Ma) of basement at the site. A very strong vertical velocity gradient of 0.126 km/s/m in the 18-m basement interval reflects a marked decrease in the degree of alteration with depth beneath the contact. |
| title | (Table 1) Summary of densities and compressional-wave velocities at DSDP Hole 72-516F |
| topic | 72-516F; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg72; Pulse transmission technique (Birch, 1960); Sample code/label; South Atlantic/CONT RISE; Velocity, compressional wave |
| url | https://doi.org/10.1594/PANGAEA.811466 |