Velocities and elastic moduli of basalts from Pacific DSDP sites
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
1973
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| _version_ | 1867168552599945216 |
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| author | Christensen, Nikolas I Salisbury, Matthew H |
| author_facet | Christensen, Nikolas I Salisbury, Matthew H |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Compressional (Vp) and shear (Vs) wave velocities have been measured to 10 kb in 32 cores of basalt from 14 Pacific sites of the Deep Sea Drilling Project. Both Vp and V s show wide ranges (3.70 to 6.38 km/sec for Vp and 1.77 to 3.40 km/sec for V s at 0.5 kb) which are linearly related to density and sea floor age, confirming earlier findings by Christensen and Salisbury of decreasing velocity with progressive submarine weathering based on studies of basalts from five sites in the Atlantic. Combined Pacific and Atlantic data give rates of decreasing velocity of -1.89 and -1.35 km/sec per 100 my for Vp and Vs respectively. New analyses of oceanic seismic refraction data indicate a decrease in layer 2 velocities with age similar to that observed in the laboratory, suggesting that weathering penetrates to several hundred meters in many regions and is largely responsible for the extreme range and variability of layer 2 refraction velocities. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_708417 |
| institution | PANGAEA |
| language | en |
| publishDate | 1973 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Velocities and elastic moduli of basalts from Pacific DSDP sites Christensen, Nikolas I Salisbury, Matthew H 5-32; 5-34; 5-36; 6-54; 6-57; 7-61; 7-61A; 7-63; 7-66; 9-77B; 9-79; 9-82; 9-83; 9-84; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg5; Leg6; Leg7; Leg9; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY; North Pacific Ocean Compressional (Vp) and shear (Vs) wave velocities have been measured to 10 kb in 32 cores of basalt from 14 Pacific sites of the Deep Sea Drilling Project. Both Vp and V s show wide ranges (3.70 to 6.38 km/sec for Vp and 1.77 to 3.40 km/sec for V s at 0.5 kb) which are linearly related to density and sea floor age, confirming earlier findings by Christensen and Salisbury of decreasing velocity with progressive submarine weathering based on studies of basalts from five sites in the Atlantic. Combined Pacific and Atlantic data give rates of decreasing velocity of -1.89 and -1.35 km/sec per 100 my for Vp and Vs respectively. New analyses of oceanic seismic refraction data indicate a decrease in layer 2 velocities with age similar to that observed in the laboratory, suggesting that weathering penetrates to several hundred meters in many regions and is largely responsible for the extreme range and variability of layer 2 refraction velocities. |
| title | Velocities and elastic moduli of basalts from Pacific DSDP sites |
| topic | 5-32; 5-34; 5-36; 6-54; 6-57; 7-61; 7-61A; 7-63; 7-66; 9-77B; 9-79; 9-82; 9-83; 9-84; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg5; Leg6; Leg7; Leg9; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY; North Pacific Ocean |
| url | https://doi.org/10.1594/PANGAEA.708417 |