Friedrich, G; Schmitz-Wiechowski, A (2022): Chemical analysis of various layers forming a ferromanganese crust retrieved in the Pacific Ocean (VA 13/2 - 237KD) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.952336
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Published: 2022-12-15 • DOI registered: 2023-01-17
Abstract:
During Valdivia cruise VA 13/2 dredging brought exceptionnally thick Mn crusts on top of basalt. One of these deposits is 22 cm thick and consists of three main zones and numerous subzones and layers. On the basis of the macroscopically visible zoning pattern and the natural planes of separation between subzones or layers, chemical analyses were carried out for Mn, Fe, Ni, Cu, Co, and Ba by atomic absorption spectroscopy (AAS), U by delayed neutron activation analysis, and Ce and La by energy-dispersive X-ray analysis.
Related to:
Friedrich, G; Schmitz-Wiechowski, A (1980): Mineralogy and chemistry of a ferromanganese crust from a deep-sea hill, central Pacific, "Valdivia" cruise VA 13/2. Marine Geology, 37(1-2), 71-90, https://doi.org/10.1016/0025-3227(80)90012-2
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:
Latitude: 9.310956 * Longitude: -146.060410
Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00
Minimum Elevation: -4830.0 m * Maximum Elevation: -4830.0 m
Event(s):
VA13-2-237KD * Latitude: 9.310956 * Longitude: -146.060410 * Date/Time Start: 1976-02-09T00:00:00 * Date/Time End: 1976-03-10T00:00:00 * Elevation: -4830.0 m * Location: Pacific Ocean * Campaign: VA-13/2 * Basis: Valdivia (1961) * Method/Device: Dredge (DRG)
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 1, page 80 of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Identification | ID | Friedrich, G | T = top zone, M = middle zone, I = bottom or inner zone | ||
| 6 | Deposit type | Deposit type | Friedrich, G | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Friedrich, G | Geocode | |
| 8 | DISTANCE | Distance | cm | Friedrich, G | Geocode – from top | |
| 9 | Manganese | Mn | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 10 | Iron | Fe | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 11 | Nickel | Ni | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 12 | Copper | Cu | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 13 | Cobalt | Co | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 14 | Zinc | Zn | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 15 | Silicon dioxide | SiO2 | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 16 | Aluminium oxide | Al2O3 | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 17 | Uranium | U | mg/kg | Friedrich, G | Neutron activation analysis | |
| 18 | Barium | Ba | % | Friedrich, G | Atomic absorption spectrometry (AAS) | |
| 19 | Lanthanum | La | mg/kg | Friedrich, G | Energy dispersive X-ray analysis, EDAX | |
| 20 | Cerium | Ce | mg/kg | Friedrich, G | Energy dispersive X-ray analysis, EDAX | |
| 21 | Image | IMAGE | Friedrich, G |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
279 data points