Wang, Guizhi; Spivack, Arthur J; DHondt, Steven (2010): (Table S1) Calcium concentrations of ODP Site 201-1226 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.783426, Supplement to: Wang, G et al. (2010): Gibbs energies of reaction and microbial mutualism in anaerobic deep subseafloor sediments of ODP Site 1226. Geochimica et Cosmochimica Acta, 74(14), 3938-3947, https://doi.org/10.1016/j.gca.2010.03.034
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Published: 2010 (exact date unknown) • DOI registered: 2012-06-29
Abstract:
In situ Gibbs energies of reaction (DG) for acetate-oxidizing sulfate reduction, acetate-oxidizing iron reduction, and acetoclastic methanogenesis, and sulfate-reducing methanotrophy are consistently negative and relatively constant throughout most of the sediment column at the eastern equatorial Pacific Ocean Drilling Program (ODP) Site 1226. The energy yields (-DG) closely match the values (for acetate-oxidizing sulfate reduction and acetoclastic methanogenesis) in published culturing experiments with actively growing cells and, for sulfate-reducing methanotrophy, in other environments.
Although microbes mediating these reactions compete for substrates, mutualistic interactions between them appear to sustain their co-existence in deep subseafloor sediments for millions of years (the interval over which the sediments have been deposited). These competing and mutualistic interactions collectively constitute a highly coupled reaction network where relative rates of reaction are regulated by the in situ Gibbs energies of reaction.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -3.094250 * Longitude: -90.817983
Date/Time Start: 2002-02-19T00:00:00 * Date/Time End: 2002-02-19T00:00:00
Minimum DEPTH, sediment/rock: 1.3 m * Maximum DEPTH, sediment/rock: 385.5 m
Event(s):
201-1226 * Latitude: -3.094250 * Longitude: -90.817983 * Date/Time: 2002-02-19T00:00:00 * Elevation: -3296.7 m * Penetration: 864.8 m * Recovery: 665.6 m * Location: South Pacific Ocean * Campaign: Leg201 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 75 cores; 671.4 m cored; 193.4 m drilled; 99.1 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 2 | Calcium | Ca | mmol/l | Wang, Guizhi |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
65 data points