Citation:

PANGAEA.973812

Name: Dissolved rare earth elements, shale-normalized patterns, biogeochemical parameters, and indices from molecular analysis of dissolved organic matter across the land-ocean continuum in the German Bight
Published: 2025-06-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Anthropogenic REE; coastal transition zones; Dissolved Organic Matter; German Bight; Rare earth elements; Southern North Sea; tidal flats; Wadden Sea

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Published: 2025-06-16 • DOI registered: 2025-06-16

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Abstract:

We analyzed concentrations of dissolved rare earth elements (REE) across the land-ocean continuum in the German Bight (southern North Sea) to identify key drivers for REE cycling in dynamic coastal environments. We identified the coastal transition zone as a critical interface for altering predominantly riverine-derived natural and anthropogenic REEs. We combined shale-normalized REE patterns, measured by quadrupole inductively coupled plasma-mass spectrometry (Q-ICP-MS), with biogeochemical bulk parameters and molecular analysis of dissolved organic matter (DOM) determined by ultrahigh-resolution mass spectrometry (FT-ICR-MS). Samples were acquired during RV Heincke cruise HE527. The dataset includes spatially resolved biogeochemical data (concentrations of chlorophyll-a, dissolved nitrogen, dissolved organic carbon, suspended particulate matter, dissolved iron, dissolved manganese and dissolved REE) in surface waters obtained along the major estuarine transects (Ems, Weser, and Elbe), coast-orthogonal transects and an offshore North Sea transect, with additional deep-water samples. Temporally resolved data were collected near the barrier islands Langeoog and Spiekeroog including the Otzumer Balje inlet. The dataset also contains molecular indices based on DOM composition (see Speidel et al. 2024, https://doi.org/10.1007/s10533-024-01117-3) REE subgroups, ratios and concentrations of anthropogenic Samarium and Gadolinium (for details see Mori et al. under review).

Keyword(s):

Anthropogenic REE; coastal transition zones; Dissolved Organic Matter; German Bight; Rare earth elements; Southern North Sea; tidal flats; Wadden Sea

Related to:

Mori, Corinna; Dellwig, Olaf; Wollschläger, Jochen; Seidel, Michael (submitted): Process zone specific alteration of rare earth element patterns across the land-ocean transition of the southern North Sea.

Speidel, Linn; Carvalho da Silva, Roger; Beck, Melanie; Dellwig, Olaf; Wollschläger, Jochen; Dittmar, Thorsten; Seidel, Michael (2024): Rivers and tidal flats as sources of dissolved organic matter and trace metals in the German Bight (North Sea). Biogeochemistry, 167(3), 225-250, https://doi.org/10.1007/s10533-024-01117-3

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. DI 842/6-1 : marDOS – Are permeable coastal sediments hotspots for the formation of non-volatile dissolved organic sulfur (DOS) in the ocean?

German Research Foundation (DFG), grant/award no. 390741603 : EXC 2077: The Ocean Floor – Earth's Uncharted Interface

Coverage:

Median Latitude: 54.075992 * Median Longitude: 7.367731 * South-bound Latitude: 53.340700 * West-bound Longitude: 4.482283 * North-bound Latitude: 55.397000 * East-bound Longitude: 9.000917

Date/Time Start: 2019-03-19T09:45:00 * Date/Time End: 2019-03-31T03:57:00

Minimum DEPTH, water: 3.6 m * Maximum DEPTH, water: 33.5 m

Event(s):

HE527_1-1 * Latitude: 53.518900 * Longitude: 8.553800 * Date/Time: 2019-03-19T09:22:00 * Elevation: -10.0 m * Campaign: (PLASTIC & LIGHT: North Sea) * Basis: * Method/Device: (CTD-RO)

HE527_2-1 * Latitude: 53.718400 * Longitude: 8.270700 * Date/Time: 2019-03-19T11:54:00 * Elevation: -10.0 m * Campaign: (PLASTIC & LIGHT: North Sea) * Basis: * Method/Device: (CTD-RO)

HE527_3-1 * Latitude: 53.781900 * Longitude: 8.143600 * Date/Time: 2019-03-19T13:21:00 * Elevation: -20.0 m * Campaign: (PLASTIC & LIGHT: North Sea) * Basis: * Method/Device: (CTD-RO)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Seidel, Michael
2	Station label	Station		Mori, Corinna
3	DATE/TIME	Date/Time		Seidel, Michael		Geocode
4	LATITUDE	Latitude		Seidel, Michael		Geocode
5	LONGITUDE	Longitude		Seidel, Michael		Geocode
6	DEPTH, water	Depth water	m	Seidel, Michael		Geocode
7	Salinity	Sal		Wollschläger, Jochen	CTD/Rosette (CTD-RO)
8	Nitrogen oxide	NOx	µmol/l	Beck, Melanie	Spectrophotometer, Thermo Fisher Scientific, Multiskan GO Microplate	Empty cell means <LOD
9	Nitrate	[NO3]-	µmol/l	Beck, Melanie	Spectrophotometer, Thermo Fisher Scientific, Multiskan GO Microplate
10	Nitrite	[NO2]-	µmol/l	Beck, Melanie	Spectrophotometer, Thermo Fisher Scientific, Multiskan GO Microplate	Empty cell means <LOD
11	Silicate	Si(OH)4	µmol/l	Beck, Melanie	Spectrophotometer, Thermo Fisher Scientific, Multiskan GO Microplate
12	Chlorophyll a	Chl a	µg/l	Wollschläger, Jochen	Submersible fluorometer, Turner Designs, SCUFA II
13	Suspended particulate matter	SPM	mg/l	Wollschläger, Jochen	Submersible fluorometer, Turner Designs, SCUFA II
14	Carbon, organic, dissolved	DOC	µmol/l	Seidel, Michael	Shimadzu TOC-VCPH total organic carbon analyzer
15	Hydrogen/Carbon ratio	H/C		Seidel, Michael	Electrospray ionisation Fourier-transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR-MS), solariX XR, Bruker Daltonik GmbH mounted to a 15 Tesla superconducting magnet, Bruker Biospin (ESI-FT-ICR-MS)
16	Oxygen/Carbon ratio	O/C		Seidel, Michael	Electrospray ionisation Fourier-transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR-MS), solariX XR, Bruker Daltonik GmbH mounted to a 15 Tesla superconducting magnet, Bruker Biospin (ESI-FT-ICR-MS)
17	Aromaticity index, modified	AI mod		Seidel, Michael	Electrospray ionisation Fourier-transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR-MS), solariX XR, Bruker Daltonik GmbH mounted to a 15 Tesla superconducting magnet, Bruker Biospin (ESI-FT-ICR-MS)
18	Manganese	Mn	nmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
19	Lanthanum	La	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
20	Cerium	Ce	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
21	Praseodymium	Pr	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
22	Neodymium	Nd	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
23	Samarium	Sm	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
24	Europium	Eu	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
25	Gadolinium	Gd	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
26	Terbium	Tb	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
27	Dysprosium	Dy	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
28	Holmium	Ho	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
29	Impedance, specific	Impedance	kg/cm²/s	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
30	Thulium	Tm	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
31	Ytterbium	Yb	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
32	Lutetium	Lu	pmol/l	Dellwig, Olaf	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
33	Light rare-earth elements	LREE	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
34	Middle rare-earth elements	MREE	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
35	Heavy rare-earth elements	HREE	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
36	Heavy rare-earth elements/light rare-earth elements ratio	HREE/LREE		Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
37	Cerium anomaly	Ce/Ce*		Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
38	Samarium anomaly	Sm/Sm*		Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
39	Gadolinium anomaly	Gd/Gd*		Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
40	Samarium natural	Sm nat	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
41	Samarium anthropogenic	Sm anth	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
42	Gadolinium natural	Gd nat	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
43	Gadolinium anthropogenic	Gd anth	pmol/l	Mori, Corinna	Quatrupole inductively coupled mass spectometry (Q-ICP-MS, iCAP Q), Thermo Fisher Scientific); mounted to a seaFAST pico pre-concentration, Element Scientific
44	Comment	Comment		Mori, Corinna

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2932 data points

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