Citation:

PANGAEA.936793

Name: Historic element compositions of benthic foraminifera in sediments from the Helgoland mud area, southern North Sea
Creator: Dierk Hebbeln
Published: 2021-10-07
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benthic foraminifera; elemental composition; historic records; North Sea

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Published: 2021-10-07 • DOI registered: 2021-11-30

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Abstract:

Here, the Cd/Ca and Pb/Ca ratios in the two benthic foraminifera species Elphidium excavatum and Ammonia tepida are presented in order to assess the impact of enhanced anthropogenic heavy metal input in historical times on these foraminifera. The foraminifera shells were picked from sediment core GeoB 4801-1, that was collected from the Helgoland mud area, German Bight, southern North Sea, during RV Meteor cruise M40/0. The obtained elemental records span the last ~300 years (for the stratigraphy of this core see Boxberg et al. 2021, https://doi.org/10.1007/s00367-019-00592-0). Element compositions were obtained by ICP-MS at the MARUM, Bremen.

Keyword(s):

Benthic foraminifera; elemental composition; historic records; North Sea

Related to:

Boehnert, S; Birkelund, A R; Schmiedl, Gerhard; Kuhnert, Henning; Kuhn, Gerhard; Hass, H Christian; Hebbeln, Dierk (2020): Test deformation and chemistry of foraminifera as response to anthropogenic heavy metal input. Marine Pollution Bulletin, 155, 111112, https://doi.org/10.1016/j.marpolbul.2020.111112

Further details:

Boxberg, Florian; Asendorf, Sanja; Bartholomä, Alexander; Schnetger, Bernhard; de Lange, Willem P; Hebbeln, Dierk (2020): Historical anthropogenic heavy metal input to the south-eastern North Sea. Geo-Marine Letters, 40(2), 135-148, https://doi.org/10.1007/s00367-019-00592-0

Project(s):

Center for Marine Environmental Sciences (MARUM)

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 112807311 : GRK 1598: INTERCOAST - Integrierte Küsten- und Schelfmeerforschung

Coverage:

Latitude: 54.111667 * Longitude: 8.036667

Date/Time Start: 1997-10-18T21:25:00 * Date/Time End: 1997-10-18T21:25:00

Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.44 m

Event(s):

GeoB4801-1 * Latitude: 54.111667 * Longitude: 8.036667 * Date/Time: 1997-10-18T21:25:00 * Elevation: -25.0 m * Recovery: 11.41 m * Location: North Sea * Campaign: * Basis: * Method/Device: Gravity corer (Kiel type) (SL) * Comment: SL-12 m

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Hebbeln, Dierk		Geocode
2	AGE	Age	ka BP	Hebbeln, Dierk	Age, calculated from a AD	Geocode
3	Age	Age	a AD/CE	Hebbeln, Dierk		CE
4	Elphidium excavatum, Cadmium/Calcium ratio	E. excavatum Cd/Ca	µmol/mol	Hebbeln, Dierk
5	Elphidium excavatum, Lead/Calcium ratio	E. excavatum Pb/Ca	µmol/mol	Hebbeln, Dierk
6	Ammonia tepida, Cadmium/Calcium ratio	A. tepida Cd/Ca	µmol/mol	Hebbeln, Dierk
7	Ammonia tepida, Lead/Calcium ratio	A. tepida Pb/Ca	µmol/mol	Hebbeln, Dierk

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

103 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 Age [a AD/CE]	4 E. excavatum Cd/Ca [µmol/mol]	5 E. excavatum Pb/Ca [µmol/mol]	6 A. tepida Cd/Ca [µmol/mol]	7 A. tepida Pb/Ca [µmol/mol]
0.01	-0.0459	1996	0.121060	0.568266	0.183859	1.312017
0.02	-0.0420	1992	0.102981	0.911800	0.192870	0.837024
0.04	-0.0343	1984	0.097128	0.880111	0.134759	0.650701
0.06	-0.0266	1977	0.154476	0.569705	0.142633	1.368786
0.08	-0.0189	1969	0.057211	0.365293
0.10	-0.0111	1961	0.120907	1.645515	0.139017	1.225405
0.14	0.0043	1946	0.040108	0.302425	0.080213	0.786933
0.16	0.0120	1938	0.021638	0.183169	0.069843	1.172385
0.18	0.0347	1915	0.020921	0.152873	0.051140	0.260686
0.22	0.0800	1870	0.019981	0.115398	0.026362	0.202787
0.24	0.1044	1846	0.021581	0.157553	0.024986	0.168621
0.26	0.1289	1821	0.013798	0.132123	0.027523	0.192801
0.28	0.1533	1797	0.032189	0.195924	0.025301	0.232858
0.30	0.1778	1772	0.036777	0.516342	0.021663	0.270909
0.32	0.1971	1753	0.007455	0.093242	0.030333	0.323309
0.34	0.2114	1739	0.018126	0.118531	0.032231	0.263026
0.36	0.2257	1724	0.030727	0.244124	0.031524	0.363211
0.38	0.2400	1710	0.018240	0.164781	0.029987	0.342044
0.40	0.2660	1684	0.021916	0.148622	0.031881	0.312617
0.42	0.2920	1658	0.022335	0.203349	0.029670	0.229038
0.44	0.3081	1642	0.022681	0.247927	0.029512	0.268372