Leclaire, Lucien; Perseil, E A (1979): (Table 1, page 24), Geochemical cmposition of nodules and crust from the Indain Ocean recovered from R/V Marion Dufresne expeditions [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855460, Supplement to: Leclaire, L; Perseil, EA (1979): Minéralogie, composition chimique et milieux de sédimentation de concrétions polymétalliques dans l'océan Indien = Mineralogy, chemical composition and sedimentation environment of manganese nodules from Indian Ocean. In: Lalou, C (Ed) La Genèse des nodules de manganèse. Centre National de la recherche Scientifique (CNRS), Gif-sur-Yvette, France, 23-37, hdl:10013/epic.46398.d001
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Abstract:
Mineralogical analysis of manganese nodules and crusts collected from Indian ocean aboard Marion Dufresne points to a depth and regional control upon the manganese oxide association: vernadite - birnessite and vernadite - todorokite. Moreover, progressive changes in the vernadite/birnessite ratio as a function of time is clearly seen. Magnetite and titano-magnetite in quantities similar to those of framboidal pyrite in manganese nodules are outlined for the first time. Study of the distribution of metals (Mn, Fe, Ni, Cu, Co) shows a strong latitudinal and regional dependence that may be connected to high productivity zones and to bottom water properties. The problem of mineralogical control on the chemical composition is approached. Finally, it results that any interpretations taking into account all these data haveway to give to the variability of sea-water properties (pH, oxygenation, motions) the prominent control upon manganese nodules composition.
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: -30.035114 * Median Longitude: 62.033449 * South-bound Latitude: -47.275000 * West-bound Longitude: 27.013333 * North-bound Latitude: -11.916670 * East-bound Longitude: 78.950000
Date/Time Start: 1973-05-28T00:00:00 * Date/Time End: 1977-09-01T00:00:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.860 m
Event(s):
MD-DR730004 (MD 00-45-DR) * Latitude: -29.900000 * Longitude: 61.933333 * Date/Time: 1973-05-28T00:00:00 * Elevation: -4065.0 m * Recovery: 10 kg * Location: Indian Ocean * Campaign: MD00 (OSIRIS I) * Basis: Marion Dufresne (1972) * Method/Device: Dredge (DRG) * Comment: Institute: MNHN
MD-DR750006 (MD 06-27-DR) * Latitude: -33.458333 * Longitude: 64.960000 * Date/Time: 1975-06-18T00:00:00 * Elevation: -4462.0 m * Recovery: 20 kg * Location: Indian Ocean * Campaign: MD06 (NOSICAA) * Basis: Marion Dufresne (1972) * Method/Device: Dredge (DRG) * Comment: Institute: MNHN
MD-DR750007 (MD 06-28-DR) * Latitude: -34.575000 * Longitude: 63.516667 * Date/Time: 1975-06-19T00:00:00 * Elevation: -4147.0 m * Recovery: 39 kg * Location: Indian Ocean * Campaign: MD06 (NOSICAA) * Basis: Marion Dufresne (1972) * Method/Device: Dredge (DRG) * Comment: Institute: MNHN
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 | Leclaire, Lucien | |||
| 2 | Latitude of event | Latitude | Leclaire, Lucien | |||
| 3 | Longitude of event | Longitude | Leclaire, Lucien | |||
| 4 | Elevation of event | Elevation | m | Leclaire, Lucien | ||
| 5 | Sample code/label | Sample label | Leclaire, Lucien | |||
| 6 | Identification | ID | Leclaire, Lucien | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Leclaire, Lucien | Geocode | |
| 8 | Aluminium | Al | % | Leclaire, Lucien | Wet chemistry | |
| 9 | Calcium | Ca | % | Leclaire, Lucien | Wet chemistry | |
| 10 | Magnesium | Mg | % | Leclaire, Lucien | Wet chemistry | |
| 11 | Manganese | Mn | % | Leclaire, Lucien | Wet chemistry | |
| 12 | Iron | Fe | % | Leclaire, Lucien | Wet chemistry | |
| 13 | Copper | Cu | % | Leclaire, Lucien | Wet chemistry | |
| 14 | Nickel | Ni | % | Leclaire, Lucien | Wet chemistry | |
| 15 | Cobalt | Co | % | Leclaire, Lucien | Wet chemistry | |
| 16 | Zinc | Zn | % | Leclaire, Lucien | Wet chemistry | |
| 17 | Lead | Pb | % | Leclaire, Lucien | Wet chemistry | |
| 18 | Silicon dioxide | SiO2 | % | Leclaire, Lucien | Wet chemistry | |
| 19 | Insoluble residue | Insol res | % | Leclaire, Lucien | Wet chemistry | |
| 20 | Description | Description | Leclaire, Lucien | part of sample analysed |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
652 data points