Taylor, Elliott; Leonard, John (1990): Geotechnical and physical properties from whole-round consolidations samples of ODP Leg 110 holes (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.747753, Supplement to: Taylor, E; Leonard, J (1990): Sediment consolidation and permeability at the Barbados Forearc. In: Moore, JC; Mascle, A; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 110, 289-308, https://doi.org/10.2973/odp.proc.sr.110.152.1990
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Abstract:
Sediments cored from the Barbados Ridge accretionary complex at ODP Sites 671, 672, and 676 are progressively underconsolidated with depth. Very low measured intergranular permeabilities contribute substantially to the probable excess pore-water pressures that account for the underconsolidated behavior. The estimated pore pressures immediately overlying the incipient decollement at the reference site are nearly equal to the overburden stress. Data show that the pore fluids within the fine-grained sediments of the complex are absorbing the tectonic shock of underthrusting as they are accreted, effectively leading to "lubricated subduction" of the underthrust Oligocene and older sediments. Lateral compression and dewatering by fracture permeability is taking place in the accreted section despite apparent underconsolidation, resulting in limited pore-volume reduction and sediment strengthening from east to west on the ridge.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 15.529850 * Median Longitude: -58.715613 * South-bound Latitude: 15.524700 * West-bound Longitude: -58.810000 * North-bound Latitude: 15.540000 * East-bound Longitude: -58.641000
Date/Time Start: 1986-06-27T08:15:00 * Date/Time End: 1986-08-14T00:30:00
Minimum DEPTH, sediment/rock: 4.40 m * Maximum DEPTH, sediment/rock: 496.70 m
Event(s):
110-671A * Latitude: 15.525800 * Longitude: -58.732500 * Date/Time Start: 1986-06-27T08:15:00 * Date/Time End: 1986-06-28T12:45:00 * Elevation: -4942.0 m * Penetration: 5 m * Recovery: 5.02 m * Location: South Atlantic Ocean * Campaign: Leg110 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 core; 5 m cored; 0 m drilled; 100.4 % recovery
110-671B * Latitude: 15.525800 * Longitude: -58.732500 * Date/Time Start: 1986-06-28T12:45:00 * Date/Time End: 1986-07-10T23:15:00 * Elevation: -4942.0 m * Penetration: 691.2 m * Recovery: 553.13 m * Location: South Atlantic Ocean * Campaign: Leg110 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 74 cores; 691.2 m cored; 0 m drilled; 80 % recovery
110-671C * Latitude: 15.528000 * Longitude: -58.732800 * Date/Time Start: 1986-07-10T23:15:00 * Date/Time End: 1986-07-15T07:30:00 * Elevation: -4947.0 m * Penetration: 514.7 m * Recovery: 16.66 m * Location: South Atlantic Ocean * Campaign: Leg110 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 19 m cored; 0 m drilled; 87.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Taylor, Elliott | DSDP/ODP/IODP sample designation | ||
| 3 | Sample comment | Sample comment | Taylor, Elliott | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 5 | Lithology/composition/facies | Lithology | Taylor, Elliott | |||
| 6 | Epoch | Epoch | Taylor, Elliott | |||
| 7 | Density, wet bulk | WBD | g/cm3 | Taylor, Elliott | ||
| 8 | Water content, wet mass | Water wm | % | Taylor, Elliott | ||
| 9 | Density, grain | Density grain | g/cm3 | Taylor, Elliott | ||
| 10 | Porosity | Poros | % vol | Taylor, Elliott | ||
| 11 | Void Ratio description | Void Ratio | Taylor, Elliott | initial | ||
| 12 | Overburden pressure | Overb press | kPa | Taylor, Elliott | effective overburden stress | |
| 13 | Preconsolidation pressure | Pc | kPa | Taylor, Elliott | max | |
| 14 | Preconsolidation pressure | Pc | kPa | Taylor, Elliott | min | |
| 15 | Comment | Comment | Taylor, Elliott | PC max/min | ||
| 16 | Overconsolidation ratio | Pc/Po | Taylor, Elliott | max | ||
| 17 | Comment 2 (continued) | Comm 2 | Taylor, Elliott | OCD max | ||
| 18 | Overconsolidation ratio | Pc/Po | Taylor, Elliott | min | ||
| 19 | Comment 3 (continued) | Comm 3 | Taylor, Elliott | OCD min | ||
| 20 | Coefficient | Coeff | Taylor, Elliott | of permeability at Pc (cm/s) | ||
| 21 | Compression index | Cc | Taylor, Elliott | |||
| 22 | Comment 4 (continued) | Comm 4 | Taylor, Elliott | Cc index | ||
| 23 | Shear strength, primary | Shear str | kPa | Taylor, Elliott | vane | |
| 24 | Sand | Sand | % | Taylor, Elliott | ||
| 25 | Silt | Silt | % | Taylor, Elliott | ||
| 26 | Size fraction < 0.002 mm, clay | <2 µm | % | Taylor, Elliott | ||
| 27 | Calcium carbonate | CaCO3 | % | Taylor, Elliott | ship | |
| 28 | Liquid limit | Liq limit | Taylor, Elliott | Atterberg limits | ||
| 29 | Plastic limit | Plastic limit | Taylor, Elliott | Atterberg limits | ||
| 30 | Plastic index | Plastic index | Taylor, Elliott | Atterberg limits |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
874 data points