Citation:

PANGAEA.980257

Name: Porewater geochemistry of surface sediment of the German North Sea, recovered by gravity 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: 54.249514 * Median Longitude: 7.924809 * South-bound Latitude: 54.051510 * West-bound Longitude: 7.836710 * North-bound Latitude: 54.402180 * East-bound Longitude: 8.124940

Date/Time Start: 2021-03-30T08:12:37 * Date/Time End: 2021-04-03T07:41:43

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 4.40 m

Event(s):

MSM99/2_23-3 (GC17) * Latitude: 54.051510 * Longitude: 8.009940 * Date/Time: 2021-03-30T08:12:37 * Elevation: -29.3 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: Gravity corer (GC) * Comment: Core length 5m

MSM99/2_25-2 (GC18) * Latitude: 54.112830 * Longitude: 8.124940 * Date/Time: 2021-03-30T14:47:06 * Elevation: -22.6 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: Gravity corer (GC) * Comment: Core length 6m

MSM99/2_29-3 (GC19) * Latitude: 54.364520 * Longitude: 7.836710 * Date/Time: 2021-03-31T10:05:46 * Elevation: -25.1 m * Location: North Sea * Campaign: (GPF 21-1_013) * Basis: * Method/Device: Gravity corer (GC) * Comment: Core length 3m

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:

368 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Station	3 Depth sed [m]	4 Cl- [mmol/l]	5 Br- [µmol/l]	6 [SO4]2- [mmol/l]	7 CH4 [mmol/l]	8 B [mmol/l]	9 Mn [µmol/l]	10 Ca [mmol/l]	11 Fe [µmol/l]	12 Na [mmol/l]	13 Mg [mmol/l]	14 Sr [µmol/l]	15 Si [mmol/l]	16 Ba [nmol/l]	17 Li [µmol/l]	18 K [mmol/l]	19 Water wm [%]	20 Poros vol	21 AT [mmol(eq)/l]
MSM99/2_23-3	MSM99-2/23-3GC17	0.00				0.00541
MSM99/2_23-3	MSM99-2/23-3GC17	0.05																		3.66
MSM99/2_23-3	MSM99-2/23-3GC17	0.10				0.04561
MSM99/2_23-3	MSM99-2/23-3GC17	0.20				0.11063
MSM99/2_23-3	MSM99-2/23-3GC17	0.25																		30.21
MSM99/2_23-3	MSM99-2/23-3GC17	0.30				0.23357
MSM99/2_23-3	MSM99-2/23-3GC17	0.40				0.47612
MSM99/2_23-3	MSM99-2/23-3GC17	0.45																		37.24
MSM99/2_23-3	MSM99-2/23-3GC17	0.50				1.91957
MSM99/2_23-3	MSM99-2/23-3GC17	0.60				4.33065
MSM99/2_23-3	MSM99-2/23-3GC17	0.70																		36.61
MSM99/2_23-3	MSM99-2/23-3GC17	0.90				6.21531														45.57
MSM99/2_23-3	MSM99-2/23-3GC17	1.20				5.55310														56.90
MSM99/2_23-3	MSM99-2/23-3GC17	1.50				4.54416														60.60
MSM99/2_23-3	MSM99-2/23-3GC17	1.80				6.38061														59.90
MSM99/2_23-3	MSM99-2/23-3GC17	2.00				6.88174														62.39
MSM99/2_23-3	MSM99-2/23-3GC17	2.30				6.97720														63.29
MSM99/2_23-3	MSM99-2/23-3GC17	2.60				3.50245														64.37
MSM99/2_23-3	MSM99-2/23-3GC17	2.90				5.67203														58.66
MSM99/2_23-3	MSM99-2/23-3GC17	3.20				3.20303														63.89
MSM99/2_23-3	MSM99-2/23-3GC17	3.60				1.92529														66.07
MSM99/2_23-3	MSM99-2/23-3GC17	3.90				2.57721
MSM99/2_23-3	MSM99-2/23-3GC17	4.20				2.52723														65.65
MSM99/2_25-2	MSM99-2/25-2GC18	0.00				0.00393
MSM99/2_25-2	MSM99-2/25-2GC18	0.05																		5.96
MSM99/2_25-2	MSM99-2/25-2GC18	0.10				0.01305
MSM99/2_25-2	MSM99-2/25-2GC18	0.20				0.03857
MSM99/2_25-2	MSM99-2/25-2GC18	0.25																		23.55
MSM99/2_25-2	MSM99-2/25-2GC18	0.30				0.05806
MSM99/2_25-2	MSM99-2/25-2GC18	0.40				0.27980
MSM99/2_25-2	MSM99-2/25-2GC18	0.50				1.49552														40.66
MSM99/2_25-2	MSM99-2/25-2GC18	0.60				3.76489
MSM99/2_25-2	MSM99-2/25-2GC18	0.70				5.25626
MSM99/2_25-2	MSM99-2/25-2GC18	0.75																		44.11
MSM99/2_25-2	MSM99-2/25-2GC18	0.80				6.09226
MSM99/2_25-2	MSM99-2/25-2GC18	0.90				7.60514
MSM99/2_25-2	MSM99-2/25-2GC18	1.00				6.77943														42.96
MSM99/2_25-2	MSM99-2/25-2GC18	1.10				6.72954
MSM99/2_25-2	MSM99-2/25-2GC18	1.25				5.38207														44.44
MSM99/2_25-2	MSM99-2/25-2GC18	1.50				6.20850														42.16
MSM99/2_25-2	MSM99-2/25-2GC18	1.75				6.18870														59.88
MSM99/2_25-2	MSM99-2/25-2GC18	2.00				4.36863														42.19
MSM99/2_25-2	MSM99-2/25-2GC18	2.25				4.05831														40.47
MSM99/2_25-2	MSM99-2/25-2GC18	2.50				4.02591														44.15
MSM99/2_25-2	MSM99-2/25-2GC18	2.80				3.42158														56.53
MSM99/2_29-3	MSM99-2/29-3GC19	0.06				0.00108														2.63
MSM99/2_29-3	MSM99-2/29-3GC19	0.16				0.00125														2.68
MSM99/2_29-3	MSM99-2/29-3GC19	0.26				0.00165														2.97
MSM99/2_29-3	MSM99-2/29-3GC19	0.36				0.00300														3.35
MSM99/2_29-4	MSM99-2/29-4GC20	0.00																		2.92
MSM99/2_29-4	MSM99-2/29-4GC20	0.02				0.00107
MSM99/2_29-4	MSM99-2/29-4GC20	0.10				0.00134														3.03
MSM99/2_29-4	MSM99-2/29-4GC20	0.18				0.00159														3.31
MSM99/2_29-4	MSM99-2/29-4GC20	0.26				0.00208														3.43
MSM99/2_29-4	MSM99-2/29-4GC20	0.34				0.00202														3.81
MSM99/2_29-4	MSM99-2/29-4GC20	0.45				0.00330														3.76
MSM99/2_29-4	MSM99-2/29-4GC20	0.55				0.00252														3.80
MSM99/2_29-4	MSM99-2/29-4GC20	0.65				0.00299														3.72
MSM99/2_29-4	MSM99-2/29-4GC20	0.75				0.00278														4.45
MSM99/2_29-4	MSM99-2/29-4GC20	0.85				0.00510														3.83
MSM99/2_29-4	MSM99-2/29-4GC20	0.95				0.00294														4.07
MSM99/2_29-4	MSM99-2/29-4GC20	1.05				0.00238														4.09
MSM99/2_29-4	MSM99-2/29-4GC20	1.15				0.00365														3.94
MSM99/2_29-4	MSM99-2/29-4GC20	1.25				0.00026														3.60
MSM99/2_29-4	MSM99-2/29-4GC20	1.30				0.00398														4.78
MSM99/2_29-4	MSM99-2/29-4GC20	1.35				0.00190														5.43
MSM99/2_29-5	MSM99-2/29-5GC21	0.05				0.00091														3.12
MSM99/2_29-5	MSM99-2/29-5GC21	0.15				0.00128														3.33
MSM99/2_29-5	MSM99-2/29-5GC21	0.25				0.00145														3.53
MSM99/2_29-5	MSM99-2/29-5GC21	0.35				0.00099														4.10
MSM99/2_29-5	MSM99-2/29-5GC21	0.45				0.00038														3.97
MSM99/2_29-5	MSM99-2/29-5GC21	0.55				0.00120														5.10
MSM99/2_29-5	MSM99-2/29-5GC21	0.65				0.00142														5.65
MSM99/2_29-5	MSM99-2/29-5GC21	0.75				0.00164														6.86
MSM99/2_29-5	MSM99-2/29-5GC21	0.85				0.00264														7.86
MSM99/2_29-5	MSM99-2/29-5GC21	0.95				0.00301														7.43
MSM99/2_38-2	MSM99-2/38-2GC25	0.05	526.74	792.32	26.58	0.00454	0.36	11.36	10.02	0.39	453.29	50.49	82.56	0.36	132.68	22.04	9.39	21.58	0.40	3.47
MSM99/2_38-2	MSM99-2/38-2GC25	0.15	522.86	832.77	25.59	0.00371	0.35	12.89	9.94	0.50	446.91	49.76	81.48	0.44	162.90	20.79	9.24	21.52	0.40	4.69
MSM99/2_38-2	MSM99-2/38-2GC25	0.25	520.45	797.69	24.04	0.00493	0.36	16.40	9.74	0.60	436.23	48.18	79.66	0.54	179.82	19.25	8.88	22.65	0.42	6.43
MSM99/2_38-2	MSM99-2/38-2GC25	0.35	515.15	803.27	22.86	0.00638	0.36	16.63	9.75	0.11	434.35	47.53	79.20	0.56	216.68	18.69	9.08	24.22	0.44	7.99
MSM99/2_38-2	MSM99-2/38-2GC25	0.45	517.62	776.41	22.47	0.00637	0.37	17.89	9.58	0.05	429.25	46.78	78.05	0.55	251.22	18.09	9.13	29.97	0.51	8.31
MSM99/2_51-3	MSM99-2/51-3GC28	0.00				0.00129
MSM99/2_51-3	MSM99-2/51-3GC28	0.05																		3.06
MSM99/2_51-3	MSM99-2/51-3GC28	0.15																		3.44
MSM99/2_51-3	MSM99-2/51-3GC28	0.20				0.02890
MSM99/2_51-3	MSM99-2/51-3GC28	0.25																		4.11
MSM99/2_51-3	MSM99-2/51-3GC28	0.30				0.00532
MSM99/2_51-3	MSM99-2/51-3GC28	0.35																		3.52
MSM99/2_51-3	MSM99-2/51-3GC28	0.40				0.00544
MSM99/2_51-3	MSM99-2/51-3GC28	0.45																		3.95
MSM99/2_51-3	MSM99-2/51-3GC28	0.50				0.00482
MSM99/2_51-3	MSM99-2/51-3GC28	0.55																		8.74
MSM99/2_51-3	MSM99-2/51-3GC28	0.60				0.00455
MSM99/2_51-3	MSM99-2/51-3GC28	0.70				0.00187
MSM99/2_51-3	MSM99-2/51-3GC28	0.75																		8.06
MSM99/2_51-3	MSM99-2/51-3GC28	1.00				0.00263
MSM99/2_51-3	MSM99-2/51-3GC28	1.05																		12.60
MSM99/2_51-3	MSM99-2/51-3GC28	1.30				0.00424
MSM99/2_51-3	MSM99-2/51-3GC28	1.35																		38.19
MSM99/2_51-3	MSM99-2/51-3GC28	1.60				0.00202
MSM99/2_51-3	MSM99-2/51-3GC28	1.75																		55.38
MSM99/2_51-3	MSM99-2/51-3GC28	1.80				5.03113
MSM99/2_51-3	MSM99-2/51-3GC28	2.10				5.07669
MSM99/2_51-3	MSM99-2/51-3GC28	2.15																		61.37
MSM99/2_51-3	MSM99-2/51-3GC28	2.40				2.87511
MSM99/2_51-3	MSM99-2/51-3GC28	2.45																		60.86
MSM99/2_51-3	MSM99-2/51-3GC28	2.70				4.00746														60.42
MSM99/2_51-3	MSM99-2/51-3GC28	3.10				4.40479														59.96
MSM99/2_51-3	MSM99-2/51-3GC28	3.45																		64.64
MSM99/2_51-3	MSM99-2/51-3GC28	3.50				4.19154
MSM99/2_51-3	MSM99-2/51-3GC28	3.75																		64.77
MSM99/2_51-3	MSM99-2/51-3GC28	3.80				4.02581
MSM99/2_51-3	MSM99-2/51-3GC28	4.05																		63.69
MSM99/2_51-3	MSM99-2/51-3GC28	4.10				4.01621
MSM99/2_51-3	MSM99-2/51-3GC28	4.35																		50.38
MSM99/2_51-3	MSM99-2/51-3GC28	4.40				3.81743