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Mangini, Augusto; Segl, M; Kudrass, Hermann-Rudolph; Wiedicke, Michael; Bonani, G; Hofmann, Hans J; Morenzoni, Elvezio; Nessi, Marzio; Suter, M; Wölfli, W (2023): Th and U isotopes composition of Mn nodule 44 TKD and Mn crust 40 TKD retrieved in the South China sea during expedition SO23/2 (R/V Sonne) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957826

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Published: 2023-04-25 • DOI registered: 2023-05-24

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Abstract:
During the campaign SO23/2 (R/V Sonne) in the South China sea various manganese deposits were retrieved by dredging. Two representative samples were selected for chemical analysis: one Mn crust (0.4 cm thick) attached to a vesicular olivine basalt fragment for station 40KD and one irregular spheroidal shaped Mn nodule with rough surface and a Miocene chalk core for station 44KD. In order to study the distribution of Th and U with distance, samples were drilled and the result was divided in equal parts. Liquid chromatography was used to separate and purify the Th isotopes. U and Th concentrations were determined using alpha spectrometry and 232Th isotope using atomic absorption spectroscopy.
Keyword(s):
Geochemistry; manganese micronodule; manganese nodule; ocean; sediment
Related to:
Mangini, Augusto; Segl, M; Kudrass, Hermann-Rudolph; Wiedicke, Michael; Bonani, G; Hofmann, Hans J; Morenzoni, Elvezio; Nessi, Marzio; Suter, M; Wölfli, W (1986): Diffusion and supply rates of 10Be and 230Th radioisotopes in two manganese encrustations from the South China Sea. Geochimica et Cosmochimica Acta, 50(1), 149-156, https://doi.org/10.1016/0016-7037(86)90060-8
Mangini, Augusto; Segl, M; Kudrass, Hermann-Rudolph; Wiedicke, Michael; Bonani, G; Hofmann, Hans J; Morenzoni, Elvezio; Nessi, Marzio; Suter, M; Wölfli, W (2023): 10Be and 9Be isotopes composition of Mn nodule 44 TKD and Mn crust 40 TKD retrieved in the South China sea during expedition SO23/2 (R/V Sonne) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957827
Mangini, Augusto; Segl, M; Kudrass, Hermann-Rudolph; Wiedicke, Michael; Bonani, G; Hofmann, Hans J; Morenzoni, Elvezio; Nessi, Marzio; Suter, M; Wölfli, W (2023): Chemical composition of Mn nodule 44 TKD and Mn crust 40 TKD retrieved in the South China sea during expedition SO23/2 (R/V Sonne) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957825
Source:
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Project(s):
NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)
Coverage:
Median Latitude: 12.583008 * Median Longitude: 118.838913 * South-bound Latitude: 12.356317 * West-bound Longitude: 118.817460 * North-bound Latitude: 12.809700 * East-bound Longitude: 118.860367
Date/Time Start: 1982-06-06T00:00:00 * Date/Time End: 1982-06-06T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
SO23/2_40KD (40KD)  * Latitude: 12.356317 * Longitude: 118.817460 * Date/Time: 1982-06-06T00:00:00 * Elevation: -1081.0 m * Location: Zulu Sea * Campaign: SO23/2 * Basis: Sonne * Method/Device: Dredge, box (DRG_B)
SO23/2_44KD (44KD)  * Latitude: 12.809700 * Longitude: 118.860367 * Date/Time: 1982-06-06T00:00:00 * Elevation: -1842.0 m * Location: Zulu Sea * Campaign: SO23/2 * Basis: Sonne * Method/Device: Dredge, box (DRG_B)
Comment:
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
This dataset represents the digitized Table 3 and 4, pp. 151 of the related publication.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventMangini, Augusto
2 Latitude of eventLatitudeMangini, Augusto
3 Longitude of eventLongitudeMangini, Augusto
4 Elevation of eventElevationmMangini, Augusto
5 IdentificationIDMangini, Augusto
6 Deposit typeDeposit typeMangini, Augusto
7 DEPTH, sediment/rockDepth sedmMangini, AugustoGeocode
8 DistanceDistmmMangini, Augustofrom surface
9 Distance, minimumDist minmmMangini, Augusto
10 Distance, maximumDist maxmmMangini, Augusto
11 Thorium-232232Thmg/kgMangini, AugustoAtomic absorption spectroscopy
12 Thorium-232, standard deviation232Th std dev±Mangini, AugustoAtomic absorption spectroscopy
13 Thorium-230230Thdpm/gMangini, AugustoAlpha spectrometry
14 Thorium-230, standard deviation230Th std dev±Mangini, AugustoAlpha spectrometry
15 Uranium-234234Udpm/gMangini, AugustoAlpha spectrometry
16 Uranium-234, standard deviation234U std dev±Mangini, AugustoAlpha spectrometry
17 Thorium-230 excess230Th xsdpm/gMangini, AugustoAlpha spectrometry
18 Thorium-230 excess, standard deviation230Th xs std dev±Mangini, AugustoAlpha spectrometry
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
257 data points

Data

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

1 
Event		2 
Latitude		3 
Longitude		4 
Elevation [m]		5 
ID		6 
Deposit type		7 
Depth sed [m]		8 
Dist [mm]		9 
Dist min [mm]		10 
Dist max [mm]		11 
232Th [mg/kg]		12 
232Th std dev [±]		13 
230Th [dpm/g]		14 
230Th std dev [±]		15 
234U [dpm/g]		16 
234U std dev [±]		17 
230Th xs [dpm/g]		18 
230Th xs std dev [±]
SO23/2_40KD 12.3563118.8175-1081SO23/2_40KD-1MGNb1Mn crust00.050.00.1218.035.0113.112.015.02.098.0012.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb2Mn crust00.150.10.2158.015.065.35.019.12.046.205.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb3Mn crust00.250.20.3116.011.037.23.020.82.016.304.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb4Mn crust00.350.30.4112.012.048.04.022.92.025.005.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb5Mn crust00.450.40.5113.510.020.02.015.12.04.903.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb6Mn crust00.550.50.6111.011.022.22.014.91.07.302.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb7Mn crust00.650.60.7114.59.014.21.512.82.01.402.5
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb8Mn crust00.750.70.869.315.034.55.018.02.016.505.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb9Mn crust00.850.80.912.42.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb10Mn crust00.950.91.099.91.415.12.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb11Mn crust01.051.01.1120.09.017.72.017.82.0
SO23/2_40KD12.3563118.8175-1081SO23/2_40KD-1MGNb12Mn crust01.151.11.2118.010.019.93.020.02.0
SO23/2_44KD 12.8097118.8604-1842SO23/2_44KD-1MGNb1Mn nodule00.250.20.3271.033.0214.014.053.011.0161.0018.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb2Mn nodule00.350.30.4146.031.0121.014.025.096.0014.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb3Mn nodule00.450.40.5150.425.088.09.025.063.009.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb4Mn nodule00.550.50.688.218.055.27.010.72.044.507.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb5Mn nodule00.650.60.790.623.044.67.019.33.025.207.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb6Mn nodule00.750.70.897.011.034.33.011.71.022.704.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb7Mn nodule00.850.80.982.112.031.74.015.72.015.915.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb8Mn nodule00.950.91.058.710.017.53.011.12.06.204.0
SO23/2_44KD12.8097118.8604-1842SO23/2_44KD-1MGNb9Mn nodule01.051.01.180.010.016.02.59.62.56.404.0