Citation:

PANGAEA.980258

Name: Porewater geochemistry of surface sediment of the German North Sea, recovered by mini corer during METEOR cruise MSM99/2 cruise (2021-03-26 - 2021-04-05)
Creator: Mark Schmidt
Published: 2025-04-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: North Sea; pockmarks; Porewater chemistry

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Published: 2025-04-01 • DOI registered: 2025-04-30

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Abstract:

Data set includes geochemical composition of porewater extracted from sediment of the North Sea (German EEZ). Respective sediment was retrieved during RV Maria S. Merian cruise MSM99/2 (Schmidt et al., 2021). Sediments were recovered by using gravity corer, mini-corer, and van Veen grab.

Onboard measured parameter (Total alkalinity) and land-based laboratory analyses (Cl, Br, SO4, CH4, B, Mn, Ca, Fe, Na, Mg, Sr, Si, Ba, Li, K) are combined with porosity and water content data.

The data is mainly used to evaluate the relevance of porewater chemistry on pockmark formation north of Helgoland (Böttner et al., 2024).

Keyword(s):

North Sea; pockmarks; Porewater chemistry

Related to:

Böttner, Christoph; Hoffmann, J; Unverricht, Daniel; Schmidt, Mark; Spiegel, Timo; Geersen, Jacob; Müller, Thomas H; Karstens, Jens; Andresen, Katrine; Sander, Lasse; Schneider von Deimling, Jens; Schmidt, Christopher (2024): The Enigmatic Pockmarks of the Sandy Southeastern North Sea. Geochemistry, Geophysics, Geosystems, 25, DOI:10.1029/2024GC011837

Schmidt, Christopher; Böttner, Christoph; Schmidt, Mark; Müller, Thomas H; Wünsche, Anna; Willems, Tim; Lindner, Marie; Müller, Frieda; Hunkemöller, Annette; Spiegel, Timo (2021): Wave induced pockmark formation in the North Sea, Cruise No. MSM 99/2 (GPF 21-1_013), 26.03.2021 - 05.04.2021, Emden (Germany) - Emden (Germany). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, 99/2, 49 pp, https://doi.org/10.48433/cr_msm99_2

Funding:

German Research Foundation (DFG), grant/award no. GPF 21-1_013: Wave induced pockmark formation in the North Sea

Coverage:

Median Latitude: 54.393230 * Median Longitude: 7.592708 * South-bound Latitude: 54.051510 * West-bound Longitude: 7.038090 * North-bound Latitude: 54.656740 * East-bound Longitude: 8.125060

Date/Time Start: 2021-03-28T07:46:07 * Date/Time End: 2021-04-03T13:32:32

Minimum DEPTH, sediment/rock: 0.010 m * Maximum DEPTH, sediment/rock: 0.270 m

Event(s):

MSM99/2_9-3 (MIC1) * Latitude Start: 54.435350 * Longitude Start: 7.282540 * Latitude End: 54.435350 * Longitude End: 7.282520 * Date/Time Start: 2021-03-28T07:46:07 * Date/Time End: 2021-03-28T07:53:04 * Elevation Start: -34.8 m * Elevation End: -34.1 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: MiniCorer (MIC)

MSM99/2_10-4 (MIC2) * Latitude Start: 54.419700 * Longitude Start: 7.241130 * Latitude End: 54.419690 * Longitude End: 7.241080 * Date/Time Start: 2021-03-28T10:20:00 * Date/Time End: 2021-03-28T10:26:31 * Elevation Start: -37.1 m * Elevation End: -37.2 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: MiniCorer (MIC)

MSM99/2_11-2 (MIC3) * Latitude Start: 54.445830 * Longitude Start: 7.205470 * Latitude End: 54.445830 * Longitude End: 7.205490 * Date/Time Start: 2021-03-28T11:21:04 * Date/Time End: 2021-03-28T11:27:22 * Elevation Start: -41.2 m * Elevation End: -40.3 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: MiniCorer (MIC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Schmidt, Mark
2	Station label	Station		Schmidt, Mark
3	DEPTH, sediment/rock	Depth sed	m	Schmidt, Mark		Geocode
4	Chloride	Cl-	mmol/l	Schmidt, Mark	Ion chromatography
5	Bromide	Br-	µmol/l	Schmidt, Mark	Ion chromatography
6	Sulfate	[SO4]2-	mmol/l	Schmidt, Mark	Ion chromatography
7	Methane	CH4	mmol/l	Schmidt, Mark	Gas chromatography
8	Boron	B	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
9	Manganese	Mn	µmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
10	Calcium	Ca	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
11	Iron	Fe	µmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
12	Sodium	Na	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
13	Magnesium	Mg	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
14	Strontium	Sr	µmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
15	Silicon	Si	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
16	Barium	Ba	nmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
17	Lithium	Li	µmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
18	Potassium	K	mmol/l	Schmidt, Mark	Inductively coupled plasma atomic emission spectroscope (ICP-AES)
19	Water content, wet mass	Water wm	%	Schmidt, Mark	Dehydration by freeze drying
20	Porosity, volume	Poros vol		Schmidt, Mark	Calculated
21	Alkalinity, total	AT	mmol(eq)/l	Schmidt, Mark	Titration, Pavlova

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2710 data points

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