Citation:

PANGAEA.965035

Name: Solid-phase manganese concentrations of surface sediments from sediment core SO268/2_136-1 (MUC-28) during SONNE cruise SO268/2, central Pacific
Published: 2022-05-17
License: https://creativecommons.org/licenses/by/4.0/
Keywords: CCZ; manganese; Pacific; surface sediments

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Abstract:

Surface sediments from the Clarion Clipperton Zone, central Pacific were analyzed for solid-phase Mn to assess potential Mn mobilization into the pore water from the solid phase during early diagenesis. Samples were taken during the SO268 cruise to the German and Belgian license areas for polymetallic nodule mining in the Clarion Clipperton Fracture Zone as part of the MiningImpact project. Sediment cores were collected with multicorers (MUC) and ROV push cores (PUC). Pore water was extracted by means of centrifugation prior to analyses of the sediments. Samples were freeze-dried and acid pressure digested using HF and HClO4. Manganese was then analyzed in the digestion solutions with an inductively coupled plasma optical emission spectrometer.

Keyword(s):

CCZ; manganese; Pacific; surface sediments

Project(s):

JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0812G : JPI-O MiningImpact: Großskaliger Umwelteinfluss eines Manganknollenkollektors auf den Spurenelementkreislauf und die Bildung und das Verhalten von Sediment-Plumes

Coverage:

Latitude: 14.025083 * Longitude: -125.920567

Date/Time Start: 2019-04-18T12:02:59 * Date/Time End: 2019-04-18T12:02:59

Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.20 m

Event(s):

SO268/2_136-1 (MUC-28) * Latitude: 14.025083 * Longitude: -125.920567 * Date/Time: 2019-04-18T12:02:59 * Elevation: -4541.7 m * Location: Clarion-Clipperton Fraction Zone, North East Pacific Ocean * Campaign: * Basis: * Method/Device: MultiCorer (MUC) * Comment: BEL Reference; Position USBL

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Station label	Station		Paul, Sophie Anna Luise
2	DEPTH, sediment/rock	Depth sed	m	Paul, Sophie Anna Luise		Geocode
3	Depth, top/min	Depth top	m	Paul, Sophie Anna Luise
4	Depth, bottom/max	Depth bot	m	Paul, Sophie Anna Luise
5	Sample code/label	Sample label		Paul, Sophie Anna Luise
6	Manganese	Mn	mg/kg	Paul, Sophie Anna Luise	ICP-OES, SPECTRO Ciros Vision SOP
7	Manganese	Mn	mg/kg	Paul, Sophie Anna Luise		average measured values MESS-4; ref. value 298
8	Manganese	Mn	mg/kg	Paul, Sophie Anna Luise		average measured values BHVO-2; ref. value 1290
9	Manganese, limit of quantification	Mn LOQ	mg/kg	Paul, Sophie Anna Luise

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

56 data points

Data

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

1 Station	2 Depth sed [m]	3 Depth top [m]	4 Depth bot [m]	5 Sample label	6 Mn [mg/kg]	7 Mn [mg/kg] (average measured values MESS-...)	8 Mn [mg/kg] (average measured values BHVO-...)	9 Mn LOQ [mg/kg]
SO268 136MUC	0.01	0.00	0.02	SO268_136MUC_0-2cm	3910	298	1410	97
SO268 136MUC	0.03	0.02	0.04	SO268_136MUC_2-4cm	9680	298	1410	97
SO268 136MUC	0.05	0.04	0.06	SO268_136MUC_4-6cm	3820	298	1410	97
SO268 136MUC	0.08	0.06	0.10	SO268_136MUC_6-10cm	3170	298	1410	97
SO268 136MUC	0.12	0.10	0.14	SO268_136MUC_10-14cm	1600	298	1410	97
SO268 136MUC	0.16	0.14	0.18	SO268_136MUC_14-18cm	1430	298	1410	97
SO268 136MUC	0.20	0.18	0.22	SO268_136MUC_18-22cm	539	298	1410	97