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Glasby, Geoffrey P; Bäcker, Harald; Meylan, Maurice A (1975): Chemical composition of manganese nodules and crusts from the Southwest Pacific recovered during R/V Tangaroa Expedition 22 in 1974. PANGAEA, https://doi.org/10.1594/PANGAEA.862056, Supplement to: Glasby, GP et al. (1975): Metal contents of manganese nodules from the Southwestern Pacific Basin (Manuscript version). Erzmetall, 28(7-8), 340-342, hdl:10013/epic.48096.d011

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Abstract:
During a research cruise of the New Zealand research vessel Tangaroa 1974 large manganese nodule fields with high density have been discovered in the Southwest Pacific. The chemical analysis was carried out on the dredges showing average grades of 16.7% Mn, 21.1% Fe, O, 22% Cu, o, 4o% Ni and O, 38% Co. The highest copper and nickel contents are at l% and therefore below the limit of 3%, which must be exceeded in general today, when the ore is to be regarded as an economically interesting . Comparisons of different analysis of manganese nodules size fractions showed that there are little differences in the chemical composition associated with nodule size. Also, the value of metal content in well-preserved nuclei volcanogenic nuclei is comparable with that of the nodule surface areas.
Related to:
Meylan, Maurice A; Bäcker, Harald; Glasby, Geoffrey P (1975): Annotated record of the detailed examination of Mn deposits from NZOI research vessel TANGAROA Cruise 22 stations. PANGAEA, https://doi.org/10.1594/PANGAEA.861927
Source data set:
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
Coverage:
Median Latitude: -27.462144 * Median Longitude: -161.130317 * South-bound Latitude: -39.868330 * West-bound Longitude: -165.036670 * North-bound Latitude: -21.686670 * East-bound Longitude: -159.933330
Date/Time Start: 1974-05-12T00:00:00 * Date/Time End: 1974-05-28T00:00:00
Minimum DEPTH, sediment/rock: m * Maximum DEPTH, sediment/rock: m
Event(s):
TANG22-G1001 * Latitude: -21.686670 * Longitude: -159.951670 * Date/Time: 1974-05-19T00:00:00 * Elevation: -3970.0 m * Location: South Pacific Ocean * Campaign: NZOI-Tangaroa_22 * Basis: Tangaroa * Device: Dredge (DRG) * Comment: Institute: NIWA
TANG22-G1002 * Latitude: -22.543330 * Longitude: -160.116670 * Date/Time: 1974-05-19T00:00:00 * Elevation: -4817.0 m * Location: South Pacific Ocean * Campaign: NZOI-Tangaroa_22 * Basis: Tangaroa * Device: Dredge (DRG) * Comment: Institute: NIWA
TANG22-G1003 * Latitude: -23.485000 * Longitude: -160.140000 * Date/Time: 1974-05-20T00:00:00 * Elevation: -4817.0 m * Location: South Pacific Ocean * Campaign: NZOI-Tangaroa_22 * Basis: Tangaroa * Device: Dredge (DRG) * Comment: Institute: NIWA
Comment:
The samples were crushed to a fine powder and heated to 110°C.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventGlasby, Geoffrey P
2Date/Time of eventDate/TimeGlasby, Geoffrey P
3Latitude of eventLatitudeGlasby, Geoffrey P
4Longitude of eventLongitudeGlasby, Geoffrey P
5Elevation of eventElevationmGlasby, Geoffrey P
6Sample IDSample IDGlasby, Geoffrey P
7DEPTH, sediment/rockDepthmGlasby, Geoffrey PGeocode
8Water in rockH2O%Glasby, Geoffrey PWet chemistry110°C loss
9Silicon dioxideSiO2%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
10ManganeseMn%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
11IronFe%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
12Aluminium oxideAl2O3%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
13Calcium oxideCaO%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
14CopperCu%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
15NickelNi%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
16CobaltCo%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
17ZincZn%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
18MolybdenumMo%Glasby, Geoffrey PAtomic absorption spectrometry (AAS)
19Deposit typeDeposit typeGlasby, Geoffrey P
20Substrate typeSubstrateGlasby, Geoffrey P
21SizeSizemmGlasby, Geoffrey Pof analysed samples
22Sample amountN#Glasby, Geoffrey Pused for analysis
Size:
580 data points

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