(Table 1, page 754) Estimated concentrations of various elements in nineteen manganese nodules


Using spectrochemical techniques Fe, Si, Mg, Co, Ni, Cu, V, Mo, Ti and Tl have been estimated in nineteen manganese nodules, eight from the Atlantic ocean, seven from the Pacific ocean and four from the Indian ocean. Though data on more samples are required before firm and detailed conclusions can be made about the distribution of elements in manganese nodules, several distinct features appear when the data on the nineteen samples are examined. Certain elements appear to enrich more strongly than others. For example, relative to igneous rocks Mo is much more strongly enriched than V. For several elements (Ni, Cu and particularly Co and Tl) the degree of enrichment in two Fe-low nodules is far smaller than in the other nodules. The magnitude of dispersion of concentration appears to vary considerably for different elements; thus, whereas variation of concentration of V is relatively small, that of Ni, Cu, Co and Tl is far larger. The statistical nature of the distribution of Fe in manganese nodules appears to be characteristic and different from that of the other elements studied so far. Of the possible inter-element relationships examined that of Ni-Cu appears to be the most strongly developed.

Each powdered sample was dried for 2 hr at 12O°C, weighed and then heated to red heat in a crucible over a bunsen flame for 5 min.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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.

Supplement to: Willis, J P; Ahrens, L H (1962): Some investigations on the composition of manganese nodules, with particular reference to certain trace elements. Geochimica et Cosmochimica Acta, 26(7), 751-764

DOI https://doi.org/10.1594/PANGAEA.857790
Related Identifier https://doi.org/10.1016/0016-7037(62)90037-6
Related Identifier https://doi.org/10.7289/V52Z13FT
Related Identifier https://doi.org/10.7289/V53X84KN
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.857790
Creator Willis, J P; Ahrens, L H
Publisher PANGAEA
Publication Year 1962
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 271 data points
Discipline Earth System Research
Spatial Coverage (-155.917W, -49.353S, 67.183E, 40.235N); Atlantic Ocean; Pacific Ocean; Indian Ocean; North-West Pacific Ocean; Vermilion Sea, Pacific Ocean
Temporal Coverage Begin 1904-11-14T00:00:00Z
Temporal Coverage End 1959-05-15T00:00:00Z