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Usui, Akira; Mochizuki, Tsunekazu (2023): Chemical composition of manganese nodules from GH80-1 cruise [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961668

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Published: 2023-08-21 • DOI registered: 2023-08-21

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Abstract:
Manganiferous materials were collected at 49 stations in the Central Pacific Basin, the Mid-Pacific Mountains, the Manihiki Plateau, and the Penrhyn Basin during cruise GH80-1. Manganese nodules were selected from 40 stations for analysis. Samples were separately taken from those samplers. During sample preparation materials other than ferromanganese oxide shells such as rock nuclei were visually removed off when possible. Two subsamples were taken when a nodule has a distinct double-layered internal structure. The samples were kept in plastic containers on board for shore-based analyses and were dried in air at room temperature in a few months after the cruise. One hundred and twelve ground samples were prepared for atomic absorption spectroscopic analyses of Mn, Fe, Cu, Ni, Co, Pb, and Zn. The analyses were carried out on the air-dried powdered samples. Total water contents (H2O tot) were measured by gravimetric method also on the air-dried powdered samples. Acid insoluble fractions were not determined, though these fractions occasionally amount several tens of per cent of nodules.
Keyword(s):
Geochemistry; manganese micronodule; manganese nodule; ocean; sediment
Related to:
Mizuno, Atsuyuki; Nakao, Seizo (1982): Regional Data of Marine Geology, Geophysics, and Manganese Nodules: the Wake-Tahiti Transect in the Central Pacific, January – March 1980 (GH80-1 Cruise). Geological Survey of Japan, 399 pp, https://www.gsj.jp/en/publications/cruise-rep/cruise18.html
Usui, Akira; Mochizuki, Tsunekazu (1982): Regional variation of manganese nodule chemistry from Wake to Tahiti, GH80-1 cruise. In: Mizuno, A & Nakao, S (Eds.): Regional Data of Marine Geology, Geophysics, and Manganese Nodules - The Wake-Tahiti Transect in the Central Pacific, January-March 1980 (GH80-1 Cruise), Geological Survey of Japan, Cruise Report, 338-354, https://www.gsj.jp/en/publications/cruise-rep/cruise18.html
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: 2.436591 * Median Longitude: -170.293404 * South-bound Latitude: -14.494833 * West-bound Longitude: 178.729833 * North-bound Latitude: 16.169500 * East-bound Longitude: -157.086000
Date/Time Start: 1980-01-21T00:00:00 * Date/Time End: 1980-03-02T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.15 m
Event(s):
GH80-1-B02S (Station 1590) * Latitude: 15.388500 * Longitude: 178.729833 * Date/Time: 1980-01-21T00:00:00 * Elevation: -5287.0 m * Recovery: 0.35 m * Location: Pacific Ocean * Campaign: GH80-1 * Basis: Hakurei-Maru (1974) * Method/Device: Box corer (BC)
GH80-1-B06 (Station 1601) * Latitude: 3.297167 * Longitude: -172.175167 * Date/Time: 1980-01-26T00:00:00 * Elevation: -5350.0 m * Recovery: 0.35 m * Location: Pacific Ocean * Campaign: GH80-1 * Basis: Hakurei-Maru (1974) * Method/Device: Box corer (BC)
GH80-1-B09 (Station 1606) * Latitude: -1.751167 * Longitude: -168.436667 * Date/Time: 1980-01-29T00:00:00 * Elevation: -5230.0 m * Recovery: 0.05 m * Location: Pacific Ocean * Campaign: GH80-1 * Basis: Hakurei-Maru (1974) * Method/Device: Box corer (BC)
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 Appendix XV-1, pp. 318-337, of the related publication.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventUsui, Akira
2Latitude of eventLatitudeUsui, Akira
3Longitude of eventLongitudeUsui, Akira
4Elevation of eventElevationmUsui, Akira
5IdentificationIDUsui, Akira
6Deposit typeDeposit typeUsui, Akira
7DEPTH, sediment/rockDepth sedmUsui, AkiraGeocode
8Water in rockH2O%Usui, AkiraWet chemistryTotal water contents after air drying
9ManganeseMn%Usui, AkiraAtomic absorption spectrophotometry
10IronFe%Usui, AkiraAtomic absorption spectrophotometry
11NickelNi%Usui, AkiraAtomic absorption spectrophotometry
12CobaltCo%Usui, AkiraAtomic absorption spectrophotometry
13CopperCu%Usui, AkiraAtomic absorption spectrophotometry
14ZincZnmg/kgUsui, AkiraAtomic absorption spectrophotometryppm
15LeadPbmg/kgUsui, AkiraAtomic absorption spectrophotometryppm
16ShapeShapeUsui, AkiraMn nodule shape
17TextureTextureUsui, AkiraMn nodule surface texture
18Sediment typeSedimentUsui, AkiraDescription of sediment associated with Mn nodules
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
1423 data points

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