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  • 1
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    (Table 1) Uncompacted and compacted sedimentation rate values corrected for bedding attitudes at DSDP Leg 66 Holes
    PANGAEA
    In:  Supplement to: Shephard, Les E; McMillen, Kenneth J (1982): Sedimentation rates of the southern Mexico Continental Margin, Deep Sea Drilling Project Leg 66. In: Watkins, JS; Casey Moore, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 66, 445-452, https://doi.org/10.2973/dsdp.proc.66.113.1982
    Details
    Publication Date: 2023-06-27
    Description: Sediment accumulation rates, computed using agesediment thickness curves obtained from DSDP cores, are rarely corrected for compaction or bedding attitude to better approximate true sediment accumulation rates (c.f. van Andel et al., 1975; Davies et al., 1977; and Whitman and Davies, 1979). Variations with depth in either of these factors can hinder interpreting relative rates of sedimentary processes associated with a particular depositional environment. This problem becomes particularly relevant for convergent margin sediments, which often display variable bedding attitudes and pronounced changes in porosity, bulk density, and other parameters related to the compaction process at shallow depth. These rapid shallow changes render correlation of sedimentation rates within a single transect of holes very difficult. Two techniques have been applied to data collected from a transect of holes along the southwestern Mexico continental margin, DSDP Leg 66 (Fig. 1), to correct sediment accumulation rates for variations in compaction and bedding attitude. These corrections should help resolve true fluctuations in accumulation rates and their implications regarding convergent margin processes.
    Keywords: -; 66-488; 66-489; 66-490; 66-491; 66-492; AGE; Age, maximum/old; Age, minimum/young; Calculated, see reference(s); Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg66; Longitude of event; North Pacific/CREST; North Pacific/SLOPE; North Pacific/TRANSITION ZONE; North Pacific/TRENCH; Sedimentation rate; Sediment thickness
    Type: Dataset
    Format: text/tab-separated-values, 539 data points
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  • 2
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    (Table 1) Consolidation characteristics and physical properties for DSDP Legs 56-57 Holes
    PANGAEA
    In:  Supplement to: Shephard, Les E; Bryant, William (1980): Consolidation characteristics of Japan Trench sediments. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1201-1205, https://doi.org/10.2973/dsdp.proc.5657.152.1980
    Details
    Publication Date: 2023-06-27
    Description: Consolidation characteristics of marine sediments have been determined for several different geologic provinces (cf. Hamilton, 1959, 1964; Keller and Bennett, 1973; Trabant, 1977; and Shephard et al., 1978). These data have been used to enhance interpretation of sediment processes; to develop density, porosity, permeability, and depth relationships; to predict excess pore water pressures; as well as to determine the amount of sediment originally present before consolidation. With the inception of plate tectonic theory several geologic and geotechnical investigations have been performed to aid in delineating those processes associated with fore-arc slope development in various trench systems (cf. Lee et al., 1973; Carson et al., 1974; Seely et al., 1974; Bouma and Moore, 1975; Trabant et al., 1975; Moore and Karig, 1976; and Seely, 1977). Many of these studies have included consolidation testing. Lee et al. (1973) tested overconsolidated sediments below 300 meters at DSDP Site 181 (Aleutian Trench). Trabant et al. (1975) reported highly overconsolidated sediments below 397 meters at DSDP Site 298 (Nankai Trough). Carson (1977) discussed overconsolidated mudstones dredged from the Cascadia Basin. Each of these studies suggests the state of overconsolidation results from tectonically induced stress, deformation, and uplift. The ensuing discussion will describe consolidation test results from samples obtained in the Japan Trench province during DSDP Legs 56 and 57.
    Keywords: 56-436; 57-438; 57-438A; 57-440; 57-440A; 57-440B; Deep Sea Drilling Project; Density; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg56; Leg57; Longitude of event; North Pacific/BASIN; North Pacific/RIDGE; North Pacific/TRENCH; Porosity; Preconsolidation pressure; Sample code/label; see reference(s); Specific gravity; Void ratio; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 80 data points
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  • 3
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    (Table 1) Inhole temperatures at DSDP Leg 66 Holes
    PANGAEA
    In:  Supplement to: Shipley, Thomas H; Shephard, Les E (1982): Temperature data from the Mexico drilling area: Report on logging and inhole temperature experiments. In: Watkins, JS; Casey Moore, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 66, 771-774, https://doi.org/10.2973/dsdp.proc.66.138.1982
    Details
    Publication Date: 2023-06-27
    Description: An extensive program of inhole geophysical measurements, implementing the Gearhart-Owen logging package and Uyeda temperature probe, was planned in support of the drilling program. These measurements were designed to aid in predicting in situ physical property variations of lower, middle, and upper slope sediments. Correlation of these variations with the extensive seismic reflection grid would aid in interpreting sediment response to the dynamic effects of subduction. In situ temperature measurements may help to substantiate the gas hydrate reflection as the phase boundary between hydrated and nonhydrated sediments. Unfortunately, Murphy's laws prevailed, and equipment malfunctions related to sand in the bit release mechanism thwarted our attempt to release the bit and log the open hole at all sites. In addition, incorrect assembly of the Uyeda tool and related bottom latching problems degraded part of the temperature data collected with this device.
    Keywords: 66-488; 66-490; 66-491; 66-492B; 66-493B; Comment; Comment 2 (continued); Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg66; Longitude of event; North Pacific; North Pacific/CREST; North Pacific/SLOPE; North Pacific/TRANSITION ZONE; Temperature, in rock/sediment, maximum; Temperature, in rock/sediment, minimum; Temperature gradient
    Type: Dataset
    Format: text/tab-separated-values, 47 data points
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  • 4
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    (Appendix) Geotechnical properties at DSDP Leg 66 Holes
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-487; 66-488; 66-489A; 66-490; 66-491; 66-492; 66-492A; 66-493; 66-493B; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Gravimetric analysis; Hamilton frame velocimeter, Boyce (1976); Latitude of event; Leg66; Longitude of event; North Pacific; North Pacific/CREST; North Pacific/SLOPE; North Pacific/TRANSITION ZONE; North Pacific/TRENCH; Porosity; Pycnometer; Sample code/label; Shear strength, primary; Torvane; Velocity, compressional wave; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 4208 data points
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  • 5
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    (Table 1) Consolidation test results and geotechnical properties of samples tested from DSDP Hole 66-487
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-487; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific/TRENCH; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 6
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    (Table 2) Consolidation test results and geotechnical properties of samples tested from DSDP Hole 66-488
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-488; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific/CREST; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 80 data points
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  • 7
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    (Table 3) Consolidation test results and geotechnical properties of samples tested from DSDP Site 66-489
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-489; 66-489A; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Event label; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific/TRENCH; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 8
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    (Table 4) Consolidation test results and geotechnical properties of samples tested from DSDP Hole 66-491
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-491; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific/SLOPE; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
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  • 9
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    (Table 6) Consolidation test results and geotechnical properties of samples tested from DSDP Site 66-493
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-493; 66-493B; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Event label; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 10
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    (Table 5) Consolidation test results and geotechnical properties of samples tested from DSDP Site 66-492
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 66-492; 66-492A; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Effective overburden pressure; Event label; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Leg66; North Pacific/SLOPE; Overconsolidation ratio; Porosity; Preconsolidation pressure; Pycnometer; Sample code/label; see reference(s); Void ratio; Water content, wet mass
    Type: Dataset
    Format: text/tab-separated-values, 128 data points
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