Citation:

PANGAEA.974341 (DOI registration in progress)

Name: Pore water solutes, total cell counts, dissolved gases and sulfate reduction rates of the 50 gravity cores of the PROSPECTOMICS project
Published: 2025-01-20
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Barents Sea; hydrocarbon seepage; pore water chemistry; sulfate reduction rates; XRF data

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Published: 2025-01-20

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Abstract:

During an expedition to the southern Barents Sea in 2021, 50 gravity cores were collected at about 350 m water depth at three sampling areas with known underlying hydrocarbon reservoirs (i.e. Zone 1, Zone 10, Zone 12) and two reference areas (i.e. Ref 5, Ref 6). The cores were subsampled on board and further analyzed for: pore water geochemistry (IC, ICP-MS, titration and spectrophotometry); dissolved gas concentrations (GC) and total cell counts (fluorescence optical microscopy).

Keyword(s):

Barents Sea; hydrocarbon seepage; pore water chemistry; sulfate reduction rates; XRF data

Related to:

Schnabel, Ellen; Vuillemin, Aurèle; Laczny, Cédric C; Kunath, Benoit J; Soares, André R; di Primio, Rolando; Kallmeyer, Jens; PROSPECTOMICS, Consortium (preprint): Influence of minor hydrocarbon seepage on sulfur cycling in marine subsurface sediments and its significance for hydrocarbon reservoir detection. https://doi.org/10.5194/egusphere-2024-1603

Funding:

Horizon 2020 (H2020), grant/award no. 899667 : Using Omics Techniques for Hydrocarbon Prospecting (PROSPECTOMICS)

Coverage:

Median Latitude: 71.966404 * Median Longitude: 21.600443 * South-bound Latitude: 71.956215 * West-bound Longitude: 21.470713 * North-bound Latitude: 71.996099 * East-bound Longitude: 21.651513

Date/Time Start: 2021-10-30T16:46:00 * Date/Time End: 2021-11-05T12:44:00

Minimum Elevation: -356.0 m * Maximum Elevation: -346.0 m

Event(s):

SV21_Ref5C01 * Latitude: 71.979330 * Longitude: 21.470713 * Date/Time: 2021-11-03T15:45:00 * Elevation: -348.0 m * Campaign: (PROSPECTOMICS) * Basis: * Method/Device: Gravity corer (GC)

SV21_Ref5C02 * Latitude: 71.979805 * Longitude: 21.471961 * Date/Time: 2021-11-03T16:26:00 * Elevation: -348.0 m * Campaign: (PROSPECTOMICS) * Basis: * Method/Device: Gravity corer (GC)

SV21_Ref5C03 * Latitude: 71.980356 * Longitude: 21.472602 * Date/Time: 2021-11-04T08:09:00 * Elevation: -348.0 m * Campaign: (PROSPECTOMICS) * Basis: * Method/Device: Gravity corer (GC)

Comment:

#9 = BDL

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Schnabel, Ellen
2	Latitude of event	Latitude		Schnabel, Ellen
3	Longitude of event	Longitude		Schnabel, Ellen
4	Sample ID	Sample ID		Schnabel, Ellen
5	Location	Location		Schnabel, Ellen
6	Location type	Loc type		Schnabel, Ellen
7	ELEVATION	Elevation	m a.s.l.	Schnabel, Ellen		Geocode
8	DEPTH, sediment/rock	Depth sed	m	Schnabel, Ellen		Geocode
9	Sulfate	[SO4]2-	mmol/l	Schnabel, Ellen
10	Hydrogen sulfide	H2S	µmol/l	Schnabel, Ellen
11	Alkalinity, total	AT	mmol(eq)/l	Schnabel, Ellen
12	Barium	Ba	mg/kg	Schnabel, Ellen		ppm
13	Magnesium	Mg	mg/kg	Schnabel, Ellen		ppm
14	Silicon	Si	mg/kg	Schnabel, Ellen		ppm
15	Calcium	Ca	mg/kg	Schnabel, Ellen		ppm
16	Manganese	Mn	µg/kg	Schnabel, Ellen		ppb
17	Nickel	Ni	µg/kg	Schnabel, Ellen		ppb
18	Copper	Cu	µg/kg	Schnabel, Ellen		ppb
19	Zinc	Zn	µg/kg	Schnabel, Ellen		ppb
20	Strontium	Sr	mg/kg	Schnabel, Ellen		ppm
21	Potassium	K	mg/kg	Schnabel, Ellen		ppm
22	Arsenic	As	µg/kg	Schnabel, Ellen		ppb
23	Iron	Fe	µmol/l	Schnabel, Ellen
24	Cell counts, microbial	Cell counts microb	log #/cm³	Schnabel, Ellen	Fluorescence optical microscopy
25	Methane	CH4	µmol/l	Schnabel, Ellen	Gas chromatography
26	Carbon dioxide	CO2	µmol/l	Schnabel, Ellen	Gas chromatography
27	Sulfate reduction rate	SSR	pmol/cm³/day	Schnabel, Ellen

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

9877 data points

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