von Stackelberg, Ulrich (2022): On-board determination of the main chemical elements concentration in manganese nodules retrieved during the R/V Valdivia VA-13/2 campaign [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.942605
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Published: 2022-03-23 • DOI registered: 2022-04-22
Abstract:
The area selected for the investigations of the VA-13/2 expedition of the Valdivia corresponds to area 2 of the previous VA-08 expedition performed in 1974. Its center coordinates are 9°25'N,146°00'W and it covers a square area of approximately 20 km. The aim of this expedition was to densify the previous 1974 network of observations and augment it by seismic data taken correlatively. This enabled a better mapping the facies zones of near-surface sediments. Furthermore, the dependence of manganese nodule chemistry upon topography on the one hand and the substrate on the other hand have been examined in more details.
During the coarse of the R/V Valdivia VA-13/2 campaign, 597 multi-element geochemical analyses of manganese nodules and manganese crusts were carried out over 164 sampling. The analysis took place initially using a TRACOR-EDX device and after technical difficulties they were carried out using X-ray fluorescence. The samples were dried at 110°C for 24 hours and then ground to required analytical fineness.
Related to:
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
von Stackelberg, Ulrich (1976): Vorhaben Manganknollen IV - VA-13/2 - mit FS "Valdivia" - Zentraler Pazifischer Ozean - 1976, Fahrtbericht. Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover, Archiv-Nr.: 074329, 70 pp, https://doi.org/10.2312/cr_va-13_2
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: 9.386063 * Median Longitude: -145.975820 * South-bound Latitude: 9.265000 * West-bound Longitude: -146.115853 * North-bound Latitude: 9.522176 * East-bound Longitude: -145.828274
Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
VA13-2-5GBH * Latitude: 9.503000 * Longitude: -146.080000 * Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00 * Elevation: -5028.0 m * Location: Pacific Ocean * Campaign: VA-13/2 * Basis: Valdivia (1961) * Method/Device: Free-fall grab (FFGR)
VA13-2-7GBH * Latitude: 9.503000 * Longitude: -146.070000 * Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00 * Elevation: -5143.0 m * Location: Pacific Ocean * Campaign: VA-13/2 * Basis: Valdivia (1961) * Method/Device: Free-fall grab (FFGR)
VA13-2-8GBH * Latitude: 9.359845 * Longitude: -145.950601 * Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00 * Elevation: -5144.0 m * Location: Pacific Ocean * Campaign: VA-13/2 * Basis: Valdivia (1961) * Method/Device: Free-fall grab (FFGR)
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Friedrich, Günther H W | |||
| 2 | Latitude of event | Latitude | Friedrich, Günther H W | |||
| 3 | Longitude of event | Longitude | Friedrich, Günther H W | |||
| 4 | Elevation of event | Elevation | m | Friedrich, Günther H W | ||
| 5 | Method/Device of event | Method/Device | Friedrich, Günther H W | |||
| 6 | Identification | ID | Friedrich, Günther H W | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Friedrich, Günther H W | Geocode | |
| 8 | Position | Position | Friedrich, Günther H W | |||
| 9 | Deposit type | Deposit type | Friedrich, Günther H W | |||
| 10 | Manganese | Mn | % | Friedrich, Günther H W | X-ray fluorescence (XRF) | |
| 11 | Iron | Fe | % | Friedrich, Günther H W | X-ray fluorescence (XRF) | |
| 12 | Nickel | Ni | % | Friedrich, Günther H W | X-ray fluorescence (XRF) | |
| 13 | Copper | Cu | % | Friedrich, Günther H W | X-ray fluorescence (XRF) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
567 data points