/* DATA DESCRIPTION:
Citation:	Shephard, Les E; Bryant, William (1980): (Table 1) Consolidation characteristics and physical properties for DSDP Legs 56-57 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.822306, 
	Supplement to: Shephard, LE; Bryant, W (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
Abstract:	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.
Project(s):	Deep Sea Drilling Project (DSDP) (URI: http://www.deepseadrilling.org/)
Coverage:	MEDIAN LATITUDE: 40.066917 * MEDIAN LONGITUDE: 143.968717 * SOUTH-BOUND LATITUDE: 39.735500 * WEST-BOUND LONGITUDE: 143.231700 * NORTH-BOUND LATITUDE: 40.629800 * EAST-BOUND LONGITUDE: 145.557800
	DATE/TIME START: 1977-10-01T00:00:00 * DATE/TIME END: 1977-11-10T00:00:00
	MINIMUM DEPTH, sediment/rock: 4.4 m * MAXIMUM DEPTH, sediment/rock: 593.7 m
Event(s):	56-436 * LATITUDE: 39.932700 * LONGITUDE: 145.557800 * DATE/TIME: 1977-10-01T00:00:00 * ELEVATION: -5240.0 m * PENETRATION: 397.5 m * RECOVERY: 240.8 m * LOCATION: North Pacific/RIDGE * CAMPAIGN: Leg56 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 42 cores; 397.5 m cored; 0 m drilled; 60.6 % recovery
	57-438 * LATITUDE: 40.629200 * LONGITUDE: 143.231700 * DATE/TIME: 1977-10-19T00:00:00 * ELEVATION: -1552.0 m * PENETRATION: 109.5 m * RECOVERY: 82.1 m * LOCATION: North Pacific/BASIN * CAMPAIGN: Leg57 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 10 cores; 90.5 m cored; 19 m drilled; 90.7 % recovery
	57-438A * LATITUDE: 40.629800 * LONGITUDE: 143.235800 * DATE/TIME: 1977-10-19T00:00:00 * ELEVATION: -1558.0 m * PENETRATION: 878 m * RECOVERY: 535.5 m * LOCATION: North Pacific/BASIN * CAMPAIGN: Leg57 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 83 cores; 780.5 m cored; 0 m drilled; 68.6 % recovery
	57-440 * LATITUDE: 39.738800 * LONGITUDE: 143.929000 * DATE/TIME: 1977-11-10T00:00:00 * ELEVATION: -4509.0 m * PENETRATION: 73 m * RECOVERY: 50.1 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg57 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 8 cores; 73 m cored; 0 m drilled; 68.7 % recovery
	57-440A * LATITUDE: 39.735500 * LONGITUDE: 143.929000 * DATE/TIME: 1977-11-10T00:00:00 * ELEVATION: -4509.0 m * PENETRATION: 139.5 m * RECOVERY: 33.4 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg57 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 6 cores; 57 m cored; 9.5 m drilled; 58.6 % recovery
	57-440B * LATITUDE: 39.735500 * LONGITUDE: 143.929000 * DATE/TIME: 1977-11-10T00:00:00 * ELEVATION: -4509.0 m * PENETRATION: 814 m * RECOVERY: 402.3 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg57 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 71 cores; 674.5 m cored; 0 m drilled; 59.6 % recovery
Parameter(s):	Event label (Event)
	Latitude of event (Latitude)
	Longitude of event (Longitude)
	Elevation of event [m] (Elevation)
	Sample code/label (Sample label) * PI: Shephard, Les E * METHOD/DEVICE: DSDP/ODP/IODP sample designation (URI: hdl:10013/epic.27914.d001)
	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * COMMENT: mbsf
	Effective overburden pressure [kPa] (Overb press ef) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s) * COMMENT: 1 kg/cm**2 = 98.066 kPa
	Preconsolidation pressure [kPa] (Pc) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s)
	Water in rock [%] (H2O) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s)
	Void ratio (Void ratio) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s)
	Porosity [% vol] (Poros) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s)
	Density [g/cm**3] (Density) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s) * COMMENT: Bulk
	Specific gravity (Specific gravity) * PI: Shephard, Les E * METHOD/DEVICE: see reference(s)
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	80 data points
*/
Event	Latitude	Longitude	Elevation [m]	Sample label	Depth sed [m]	Overb press ef [kPa]	Pc [kPa]	H2O [%]	Void ratio	Poros [% vol]	Density [g/cm**3]	Specific gravity
56-436	39.9327	145.5578	-5240	56-436-39-4	365.5	1740.6715	122.5825	53.50	1.53	60.48	1.73	2.85
57-438	40.6292	143.2317	-1552	57-438-3-4	20.5	127.4858	48.5427	75.70	1.99	67.21	1.56	2.70
57-438A	40.6298	143.2358	-1558	57-438A-19-4	236.0	1162.0821	294.1980	126.45	3.11	75.66	1.36	2.46
57-438A	40.6298	143.2358	-1558	57-438A-33	364.5	1583.7659	225.5518	93.11	2.25	69.21	1.46	2.44
57-440	39.7388	143.9290	-4509	57-440-1-3	4.4	23.5358	15.6906	65.46	1.74	63.55	1.60	2.66
57-440	39.7388	143.9290	-4509	57-440-4-3	31.0	163.7702	52.9556	71.09	1.93	65.82	1.59	2.71
57-440A	39.7355	143.9290	-4509	57-440A-2-4	87.5	460.9102	147.0990	80.85	2.09	67.68	1.53	2.60
57-440A	39.7355	143.9290	-4509	57-440A-6-2	123.5	662.9262	22.5552	67.51	1.75	67.51	1.59	2.60
57-440B	39.7355	143.9290	-4509	57-440B-28-3	400.5	2261.4020	98.0660	74.13	1.78	64.09	1.53	2.44
57-440B	39.7355	143.9290	-4509	57-440B-48-5	593.7	3376.4124	89.2401	66.97	1.64	62.06	1.56	2.46