Wegener, Gunter; Schubotz, Florence (2022): Analysis of porewater constituents in sediments collected in the Campeche Hydrocarbon Province in the Southern Gulf of Mexico in 2015 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943978
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Published: 2022-05-11 • DOI registered: 2022-06-21
Abstract:
In the Campeche Hydrocarbon province in the southern Gulf of Mexico, large areas of the seafloor are rich in natural gas and highly viscous crude oil. To understand the influence of these hydrocarbons on porewater geochemistry, we cored sediments from specific sites by gravity coring, multicoring and push coring during Meteor Expedition M114-2 in March 2015. Onboard, we retrieved porewater from these samples by Rhizon sampling. In addition, some seawater samples were collected. In the home laboratory, we analyzed the subsamples for silicate, phosphate, ammonium, nitrate, nitrate using a multi-channel nutrient analyzer, for sulfate and chloride using an ion chromatograph, for sulfide using the diamine approach, and we analyzed the isotopic composition of dissolved inorganic carbon using a GasBench coupled to an isotope ratio mass spectrometer.
Keyword(s):
Coverage:
Median Latitude: 21.588967 * Median Longitude: -93.588916 * South-bound Latitude: 19.980383 * West-bound Longitude: -94.438267 * North-bound Latitude: 23.476500 * East-bound Longitude: -92.543133
Date/Time Start: 2015-03-03T11:21:00 * Date/Time End: 2015-03-24T03:44:00
Minimum DEPTH, sediment/rock: -20.000 m * Maximum DEPTH, sediment/rock: 6.610 m
Event(s):
GeoB19316-1 (M114/2_73-1) * Latitude: 20.602900 * Longitude: -94.286167 * Date/Time: 2015-03-03T11:21:00 * Elevation: -1885.0 m * Location: Gulf of Mexico * Campaign: M114/2 * Basis: Meteor (1986) * Method/Device: MiniCorer (MIC) * Comment: Background,half filled with sediment/water
GeoB19321-1 (M114/2_78-1) * Latitude: 19.980383 * Longitude: -94.176533 * Date/Time: 2015-03-08T01:28:00 * Elevation: -1859.0 m * Location: Gulf of Mexico * Campaign: M114/2 * Basis: Meteor (1986) * Method/Device: Gravity corer (GC) * Comment: 96 cm recovery, with gypsium
GeoB19322-8 (M114/2_79-8) * Latitude: 20.018633 * Longitude: -94.438267 * Date/Time: 2015-03-08T20:08:00 * Elevation: -1873.0 m * Location: Gulf of Mexico * Campaign: M114/2 * Basis: Meteor (1986) * Method/Device: Push corer (PUC) * Comment: PC-R1, on dark patch
Comment:
#999: below detection limit
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Wegener, Gunter | |||
| 2 | Location | Location | Wegener, Gunter | |||
| 3 | Location | Location | Wegener, Gunter | Sublocation | ||
| 4 | DEPTH, sediment/rock | Depth sed | m | Wegener, Gunter | Geocode | |
| 5 | Silicate | Si(OH)4 | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 6 | Phosphate | [PO4]3- | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 7 | Ammonium | [NH4]+ | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 8 | Nitrate and Nitrite | [NO3]- + [NO2]- | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 9 | Nitrite | [NO2]- | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 10 | Nitrate | [NO3]- | µmol/l | Wegener, Gunter | Nutrient analyser | |
| 11 | Sulfate | [SO4]2- | mmol/l | Wegener, Gunter | Ion chromatography | |
| 12 | Chloride | Cl- | mmol/l | Wegener, Gunter | Ion chromatography | |
| 13 | Sulfide, total | TS2- | mmol/l | Wegener, Gunter | ||
| 14 | δ13C, dissolved inorganic carbon | δ13C DIC | ‰ PDB | Wegener, Gunter | Isotope ratio mass spectrometer (IRMS) with a GasBench |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
736 data points