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  • Data  (67)
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  • 1
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    Velocities and elastic moduli of basalts from Pacific DSDP sites
    PANGAEA
    In:  Supplement to: Christensen, Nikolas I; Salisbury, Matthew H (1973): Velocities, elastic moduli and weathering-age relations for Pacific Layer 2 basalts. Earth and Planetary Science Letters, 19(4), 461-470, https://doi.org/10.1016/0012-821X(73)90190-8
    Details
    Publication Date: 2023-06-27
    Description: 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.
    Keywords: 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; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 2
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    The physical properties of basalt at DSDP Hole 45-395A
    PANGAEA
    In:  Supplement to: Hyndman, Roy D; Christensen, Nikolas I; Drury, Malcolm J (1984): The physical properties of basalt core samples from Deep Sea Drilling Project Leg 78B Hole 395A. In: Hyndman, RD; Salisbury, MH; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 78B, 801-810, https://doi.org/10.2973/dsdp.proc.78b.115.1984
    Details
    Publication Date: 2023-06-27
    Description: A detailed study has been made of the physical properties of core samples from Deep Sea Drilling Project Hole 395A. The properties include: density, porosity, compressional and shear wave velocity, thermal conductivity, thermal diffusivity, and electrical resistivity. Of particular importance are the relations among the parameters. Most of the variations in the basalt properties follow the porosity, with smaller inferred dependence on pore structure, original mineralogy differences, and alteration. The sample measurements give very similar results to (and extend previous data from) Mid-Atlantic Ridge drillholes, the sample data from this site and previous data are used to estimate relations between porosity and other large-scale physical properties of the upper oceanic crust applicable to this area. These relations are important for the analysis and interpretation of downhole logging measurements and marine geophysical data.
    Keywords: 45-395A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg45
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 3
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    Physical properties and minerals of Leg 65 Holes basalts
    PANGAEA
    In:  Supplement to: Christensen, Nikolas I; Lewis, Brian T R (1983): Physical properties of Leg 65 basalts. In: Lewis, BTR; Robinson, P; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 65, 693-696, https://doi.org/10.2973/dsdp.proc.65.136.1983
    Details
    Publication Date: 2023-06-27
    Description: Velocities and densities of submarine basalts obtained during Leg 65 are distinguished by their relatively high values (about 6.3 km/s and 2.9 g/cm/**3, respectively). This is consistent with their low degree of alteration. The range of velocities covered by these samples correlates well with porosity, and a comparison with in situ velocities from refraction data suggests maximum porosities ih the upper 100 meters of the crust of about 10%.
    Keywords: 65-482B; 65-482C; 65-482D; 65-483; 65-483B; 65-485; 65-485A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg65; North Pacific/Gulf of California/CONT RISE; North Pacific/Gulf of California/SEDIMENT POND
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 4
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    (Table 2) Shear wave velocities of Pacific DSDP Site basalts
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 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; DSDP/ODP/IODP sample designation; Elevation of event 2; Event label; Glomar Challenger; Latitude of event; Leg5; Leg6; Leg7; Leg9; Longitude of event; North Pacific; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY; ORDINAL NUMBER; Sample code/label; Sample comment; Velocity, shear wave
    Type: Dataset
    Format: text/tab-separated-values, 540 data points
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  • 5
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    (Table 3) Effective elastic constants calculated from velocities of Pacific DSDP Site basalts
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: -; 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; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg5; Leg6; Leg7; Leg9; Longitude of event; North Pacific; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY; ORDINAL NUMBER; Pressure; Ratio; Sample code/label; Velocity, compressional/shear wave ratio
    Type: Dataset
    Format: text/tab-separated-values, 800 data points
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  • 6
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    (Table 2) Compressional wave velocities of Pacific DSDP Site basalts
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 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; Comment; Deep Sea Drilling Project; Density, dry bulk; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg5; Leg6; Leg7; Leg9; Longitude of event; North Pacific; North Pacific/BASIN; North Pacific/HILL; North Pacific/Philippine Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; North Pacific/VALLEY; ORDINAL NUMBER; Sample code/label; Sample comment; Velocity, compressional wave
    Type: Dataset
    Format: text/tab-separated-values, 612 data points
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  • 7
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    (Table 1) Basalt density, basement age, and intrusive/extrusive relations from DSDP Site 14-136
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 14-136; Age; AGE; Calculated average/mean values; Deep Sea Drilling Project; Density, wet bulk; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg14; North Atlantic/HILL; Rock type
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
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  • 8
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    (Table 1) Basalt density, basement age, and intrusive/extrusive relations from DSDP Site 14-137
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 14-137; AGE; Calculated average/mean values; Deep Sea Drilling Project; Density, wet bulk; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg14; North Atlantic/HILL; Rock type
    Type: Dataset
    Format: text/tab-separated-values, 5 data points
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  • 9
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    (Table 1) Basalt density, basement age, and intrusive/extrusive relations from DSDP Site 14-138
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 14-138; Age; AGE; Calculated average/mean values; Deep Sea Drilling Project; Density, wet bulk; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg14; North Atlantic/CONT RISE; Rock type
    Type: Dataset
    Format: text/tab-separated-values, 13 data points
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  • 10
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    (Table 1) Basalt density, basement age, and intrusive/extrusive relations from DSDP Site 3-14
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 3-14; AGE; Calculated average/mean values; Deep Sea Drilling Project; Density, wet bulk; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg3; Rock type; South Atlantic/HILL
    Type: Dataset
    Format: text/tab-separated-values, 5 data points
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