PANGAEA_854345 Table 2 (page 260), Average chemical composition of the WALDA nodules (R/V Jean Charcot expedition) Pignet, G; Martin, G; Bougault, Henri Table 2 (page 260), Average chemical composition of the WALDA nodules (R/V Jean Charcot expedition) 1979 PANGAEA Dataset Supplement to: Pignet, G; Martin, G; Bougault, Henri (1979): Les nodules polymétalliques et la dépollution des eaux (Polymetalic nodules and water depollution). Journal Français d'Hydrologie, 10(3), 179-188, https://archimer.ifremer.fr/doc/00000/5396/4850.pdf https://doi.pangaea.de/10.1594/PANGAEA.854345 Investigator G Pignet Earth Science Sample ID Latitude of event Longitude of event Elevation of event Method/Device of event Manganese Iron Nickel DEPTH, sediment/rock Description geoscientificInformation Dredge WALDA-003_CH20 WALDA-DS17 Atomic absorption spectrometry (AAS) Jean Charcot 1971-07-15 1971-07-15 Complete -9.2 -9.2 10.483333 10.483333 0.0 m (DEPTH, sediment/rock) 0.0 m (DEPTH, sediment/rock) NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database unrestricted CC-BY-3.0: Creative Commons Attribution 3.0 Unported English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 5 data points text/tab-separated-values 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 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

Manganese rich polymetallic nodules are used for trace element removal from fresh-water. The theory of kinetics and mechanisms of reactions are discussed for manganese removal. The efficiency of nodules is higher than efficiency related to other manganese removal methods. Pilot units involving continuous processes are discussed. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.854345"! ** 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.

http://www.ifremer.fr/sismer/FR/catal/campagne/campagne.htql?crno=71003511 WALDA-003_CH20 http://www.mindat.org/min-2895.html Nickel https://archimer.ifremer.fr/doc/00000/5396/4850.pdf Les nodules polymétalliques et la dépollution des eaux (Polymetalic nodules and water depollution) https://doi.org/10.7289/V52Z13FT The NOAA and MMS Marine Minerals Geochemical Database https://doi.org/10.7289/V53X84KN The NOAA and MMS Marine Minerals Bibliography https://wiki.pangaea.de/wiki/NOAA-MMS NOAA-MMS DIF 9.4 2026-04-30