DHondt, Steven; Rutherford, Scott D; Spivack, Arthur J (2002): (Table 1) Rates of biological activity in deep-sea sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.772205, Supplement to: DHondt, S et al. (2002): Metabolic activity of subsurface life in deep-sea sediments. Science, 295(5562), 2067-2070, https://doi.org/10.1126/science.1064878
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Abstract:
Global maps of sulfate and methane in marine sediments reveal two provinces of subsurface metabolic activity: a sulfate-rich open-ocean province, and an ocean-margin province where sulfate is limited to shallow sediments. Methane is produced in both regions but is abundant only in sulfate-depleted sediments. Metabolic activity is greatest in narrow zones of sulfate-reducing methane oxidation along ocean margins. The metabolic rates of subseafloor life are orders of magnitude lower than those of life on Earth's surface. Most microorganisms in subseafloor sediments are either inactive or adapted for extraordinarily low metabolic activity.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 12.840117 * Median Longitude: -149.931385 * South-bound Latitude: -10.976660 * West-bound Longitude: 134.644580 * North-bound Latitude: 37.038500 * East-bound Longitude: -77.957670
Date/Time Start: 1986-11-08T13:15:00 * Date/Time End: 2000-06-22T22:30:00
Minimum DEPTH, sediment/rock: 10 m * Maximum DEPTH, sediment/rock: 30 m
Event(s):
112-681C * Latitude: -10.976660 * Longitude: -77.957670 * Date/Time Start: 1986-11-08T13:15:00 * Date/Time End: 1986-11-08T18:00:00 * Elevation: -162.0 m * Penetration: 91.4 m * Recovery: 86.24 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 91.4 m cored; 0 m drilled; 94.4 % recovery
128-798B * Latitude: 37.038500 * Longitude: 134.799600 * Date/Time Start: 1989-08-28T10:24:00 * Date/Time End: 1989-08-31T08:00:00 * Elevation: -911.0 m * Penetration: 517.9 m * Recovery: 514.42 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 54 cores; 517.9 m cored; 0 m drilled; 99.3 % recovery
138-851 * Latitude: 2.770283 * Longitude: -110.571633 * Date/Time Start: 1991-06-16T00:00:00 * Date/Time End: 1991-06-21T00:00:00 * Elevation: -3760.3 m * Penetration: 799.9 m * Recovery: 797.9 m * Location: North Pacific Ocean * Campaign: Leg138 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 86 cores; 797.4 m cored; 0 m drilled; 100.1% recovery
Comment:
The sediment depth gives the base of SO4**2- reduction zone in mbsf. Where no depth is given SO4**2- is present throughout the drilled hole and, consequently, that there is no base to the SO4**-2 reduction zone in the sampled sediment column.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Sulfate, flux | [SO4]2- flux | µmol/cm2/a | DHondt, Steven | downward to subsurface | |
| 4 | Sulfate, flux, standard deviation | [SO4]2- flux std dev | ± | DHondt, Steven | downward to subsurface | |
| 5 | Sulfate, flux | [SO4]2- flux | µmol/cm2/a | DHondt, Steven | SO4**2- flux due to CH4 oxidation | |
| 6 | Sulfate, flux, standard deviation | [SO4]2- flux std dev | ± | DHondt, Steven | mol CO2/cm/a | |
| 7 | Standard deviation | Std dev | ± | DHondt, Steven | respiration [mol CO2/cm/a] | |
| 8 | - | - | DHondt, Steven | photosynthesis of overlyiung ocean [mol CO2 reduced/cm**2/a) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
36 data points