Kwon, Ohmyoung; Mobley, Karen; Carlson, Richard L (2004): (Table T1) Permeabilities and bulk properties of ODP Hole 191-1179C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.779521, Supplement to: Kwon, O et al. (2004): Measured permeabilities of diatomaceous sediments and pelagic clay from the northwest Pacific, ODP Site 1179. In: Sager, WW; Kanazawa, T; Escutia, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 191, 1-16, https://doi.org/10.2973/odp.proc.sr.191.005.2004
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Abstract:
One of the objectives of drilling at Site 1179 was to search for microbes or biochemical evidence of microbial activity as part of the ongoing exploration of the depth and extent of the deep biosphere. The existence of living microbes has not been confirmed, but the chemistry of pore waters from the site, such as sulfate and ammonium profiles, is consistent with sulfate reduction and nitrification by anaerobic bacteria. However, chemical profiles are affected by the movement of molecules and ions through porous sediments by diffusion and advection. Permeability is thus an important consideration in the interpretation of pore water chemistry profiles. Moreover, diatomaceous sediments have some unique and, as yet, poorly understood physical properties. The purpose of this research is to measure hydraulic conductivity (permeability) in a suite of sediment samples from Ocean Drilling Program Site 1179 by the transient-pulse method. The sample set consists of four diatom ooze samples from Unit I, one radiolarian ooze sample from Unit II, and one pelagic clay sample from Unit III. The permeability of the clay is 1.92 µd, whereas the permeabilities of the overlying radiolarian and diatom oozes range from 289 to 1604 µd. Among these samples, permeability increases with porosity and grain size, in keeping with the results of previous studies.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 41.079800 * Longitude: 159.963100
Date/Time Start: 2000-07-27T04:00:00 * Date/Time End: 2000-07-30T02:30:00
Minimum DEPTH, sediment/rock: 70.3 m * Maximum DEPTH, sediment/rock: 259.0 m
Event(s):
191-1179C * Latitude: 41.079800 * Longitude: 159.963100 * Date/Time Start: 2000-07-27T04:00:00 * Date/Time End: 2000-07-30T02:30:00 * Elevation: -5563.9 m * Penetration: 292.9 m * Recovery: 246.89 m * Location: North Pacific Ocean * Campaign: Leg191 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 249.9 m cored; 43 m drilled; 98.8 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Kwon, Ohmyoung | DSDP/ODP/IODP sample designation | ||
| 2 | Lithologic unit/sequence | Unit | Kwon, Ohmyoung | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 4 | Density, wet bulk | WBD | g/cm3 | Kwon, Ohmyoung | ||
| 5 | Grain size, mean | Grain size mean | µm | Kwon, Ohmyoung | Grain size, LASER Particle Sizer | |
| 6 | Porosity | Poros | % vol | Kwon, Ohmyoung | ||
| 7 | Permeability (earth science) | k | 10-12 m2 | Kwon, Ohmyoung | Calculated | Originally given in µd (micro darcy) but was converted to SI units: 1 darcy was approximated to 1x10**-12 m**2. |
| 8 | Permeability, standard deviation | Permeab std dev | ± | Kwon, Ohmyoung | Calculated | |
| 9 | Hydraulic conductivity | Kf | m/s | Kwon, Ohmyoung | ||
| 10 | Conductivity, standard deviation | Cond std dev | ± | Kwon, Ohmyoung | ||
| 11 | Preconsolidation pressure | Pc | kPa | Kwon, Ohmyoung | Pressure transducer, Validyne | |
| 12 | Effective stress | Sigma | kPa | Kwon, Ohmyoung | Pressure transducer, Validyne | |
| 13 | Pressure, difference | dP | kPa | Kwon, Ohmyoung | Pressure transducer, Validyne |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
72 data points