Halbach, Peter; Puteanus, Doris; Manheim, Frank T (2022): Metal content of ferromanganese seamount crusts from the Central Pacific taken during the research cruise Midpac 81 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950676
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Abstract:
The ferromanganese crust samples studied have been taken from Central Pacific seamount areas during the research cruise Midpac 81. Two ferromanganese crust generations with different ages have been identified; in between a period of carbonate sedimentation and an episode of phosphorite formation have taken place. The older crust generation, therefore, is mostly impregnated by carbonate-apatite. The younger crust generation has started to accumulate around 10 Ma ago, the growth period of the older crust layer is most likely Middle Eocene to Early Oligocene. Metal concentration was determined by Atomic Absotption Spectrophometry. For Pt a chemical pre-enrichment step (e.g. enrichment by coprecipitation with tellurium) was necessary.
Related to:
Clark, Allen L; Humphrey, P; Johnson, C; Pak, D (1985): Resource assessment: cobalt-rich manganese crust potential : exclusive economic zones, U.S. trust and affiliated territories in the Pacific. Minerals Management Service, Department of the Interior, Long Beach, California, USA, MMS 85-0006, https://catalog.hathitrust.org/Record/002233052
Halbach, Peter; et al. (1984): (Table 4, pp. C04-1 to C05-7) Composition of ferromanganese crusts analysed by TUCLZ. in: Manheim, F.T. (Ed.), Lane-Bostwick, C.M. (Ed.), 1989. Chemical composition of ferromanganese crusts in the world ocean: A review and comprehensive database (U.S. Geological Survey Open File Report No. 89–020). US Department of the Interior, Geological Survey, 480 pp
Halbach, Peter; Segl, M; Puteanus, Doris; Mangini, A (1983): Co-fluxes and growth rates in ferromanganese deposits from central Pacific seamount areas. Nature, 304(5928), 716-719, https://doi.org/10.1038/304716a0
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: 12.747729 * Median Longitude: -166.391958 * South-bound Latitude: 8.929670 * West-bound Longitude: -171.172830 * North-bound Latitude: 20.078000 * East-bound Longitude: -164.554670
Date/Time Start: 1981-06-22T00:00:00 * Date/Time End: 1981-07-09T00:00:00
Minimum Elevation: -4939.0 m * Maximum Elevation: -1332.0 m
Event(s):
SO18_13 * Latitude: 8.929670 * Longitude: -164.554670 * Date/Time: 1981-06-22T00:00:00 * Elevation: -4939.0 m * Location: North Pacific Ocean * Campaign: SO18 (MIDPAC I) * Basis: Sonne * 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.
This dataset represents the digitized Table 1, pp. 578 of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Halbach, Peter | |||
| 2 | Latitude of event | Latitude | Halbach, Peter | |||
| 3 | Longitude of event | Longitude | Halbach, Peter | |||
| 4 | Elevation of event | Elevation | m | Halbach, Peter | ||
| 5 | Identification | ID | Halbach, Peter | |||
| 6 | Deposit type | Deposit type | Halbach, Peter | |||
| 7 | Platinum | Pt | mg/kg | Halbach, Peter | Atomic absorption spectrophotometry | |
| 8 | Silicon | Si | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 9 | Titanium | Ti | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 10 | Manganese | Mn | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 11 | Iron | Fe | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 12 | Aluminium | Al | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 13 | Cobalt | Co | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 14 | Nickel | Ni | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 15 | Copper | Cu | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 16 | Calcium | Ca | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 17 | Magnesium | Mg | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 18 | Phosphorus | P | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 19 | Chromium | Cr | mg/kg | Halbach, Peter | Atomic absorption spectrophotometry | |
| 20 | Lead | Pb | mg/kg | Halbach, Peter | Atomic absorption spectrophotometry | |
| 21 | Zinc | Zn | mg/kg | Halbach, Peter | Atomic absorption spectrophotometry | |
| 22 | Description | Description | Halbach, Peter | Nature and age of the deposit |
Change history:
2023-02-13T06:56:43 – Additional elements were added from Halbach 1984: Si, Ti, Al, Ca, Mg, P, Cr and Pb.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
188 data points