Usui, Akira; Mochizuki, Tsunekazu (2023): Chemical composition and morphology of manganese nodules and crusts retrieved in the Pacific Ocean during GH80-5 campaign [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954212
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Chemical analyses were made on one hundred and forty five powder samples taken from defined parts of manganese nodules retrieved during the GH80-5 campaign of the R/V Hakurei-Maru in the Pacific Ocean. The analyzed parts were prescribed according to external and internal morphology: samples from nodule tops, bottoms, outer layer, inner parts, and entire nodules were prepared. This description of analysed parts proved important in understanding the relationship between mineral and chemical compositions as compared with previous bulk analyses. More than one samples were selected from each station as representatives of the stations. Samples have been powdered and dried at 110° C. Seven metal elements have been determined by atomic absorption spectroscopy. Water content has been determined both for H2O+ by the Penfield method (gravimetric) and for H2O- as the drying loss at 100°C.
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):
Coverage:
Median Latitude: 9.453277 * Median Longitude: -174.377347 * South-bound Latitude: 8.651700 * West-bound Longitude: -174.854200 * North-bound Latitude: 10.183200 * East-bound Longitude: -173.914000
Date/Time Start: 1980-08-19T00:00:00 * Date/Time End: 1980-09-25T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.095 m
Event(s):
GH80-5-B33 (Station 1981) * Latitude: 9.835000 * Longitude: -174.498200 * Date/Time: 1980-08-20T00:00:00 * Elevation: -5869.0 m * Recovery: 0.19 m * Location: Pacific Ocean * Campaign: GH80-5 * Basis: Hakurei-Maru (1974) * Method/Device: Box corer (BC)
GH80-5-B34 (Station 1984) * Latitude: 9.674700 * Longitude: -174.679200 * Date/Time: 1980-08-21T00:00:00 * Elevation: -5952.0 m * Recovery: 0.3 m * Location: Pacific Ocean * Campaign: GH80-5 * Basis: Hakurei-Maru (1974) * Method/Device: Box corer (BC)
GH80-5-B35 (Station 1987) * Latitude: 9.838500 * Longitude: -174.849800 * Date/Time: 1980-08-22T00:00:00 * Elevation: -5952.0 m * Recovery: 0.28 m * Location: Pacific Ocean * Campaign: GH80-5 * 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 Table XV-1, pp. 244-248 of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Usui, Akira | |||
| 2 | Latitude of event | Latitude | Usui, Akira | |||
| 3 | Longitude of event | Longitude | Usui, Akira | |||
| 4 | Elevation of event | Elevation | m | Usui, Akira | ||
| 5 | Identification | ID | Usui, Akira | |||
| 6 | Deposit type | Deposit type | Usui, Akira | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Usui, Akira | Geocode | |
| 8 | Distance | Dist | mm | Usui, Akira | from outer layer/surface | |
| 9 | Distance, minimum | Dist min | mm | Usui, Akira | from outer layer/surface | |
| 10 | Distance, maximum | Dist max | mm | Usui, Akira | from outer layer/surface | |
| 11 | Manganese | Mn | % | Usui, Akira | Atomic absorption spectroscopy | |
| 12 | Iron | Fe | % | Usui, Akira | Atomic absorption spectroscopy | |
| 13 | Copper | Cu | % | Usui, Akira | Atomic absorption spectroscopy | |
| 14 | Nickel | Ni | % | Usui, Akira | Atomic absorption spectroscopy | |
| 15 | Cobalt | Co | % | Usui, Akira | Atomic absorption spectroscopy | |
| 16 | Silicon | Si | % | Usui, Akira | Atomic absorption spectroscopy | |
| 17 | Aluminium | Al | % | Usui, Akira | Atomic absorption spectroscopy | |
| 18 | Water in rock | H2O | % | Usui, Akira | Penfield method (gravimetric) | H2O+, structural part, similar to LOI |
| 19 | Water in rock | H2O | % | Usui, Akira | Wet chemistry | H2O-, at 110°C drying, hydration part |
| 20 | Shape | Shape | Usui, Akira | |||
| 21 | Texture | Texture | Usui, Akira | |||
| 22 | Sample type | Samp type | Usui, Akira | Part analysed |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2287 data points
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