Chemical analysis of manganese nodules from the Cape Leeuwin field, southeast Indian Ocean

DOI

Manganese nodules from 36 stations in the Cape Leeuwin field were analyzed for Mn, Fe, Ni, Cu and Co and the results were combined with earlier work to demonstrate quantitative and geographic variations. Nodules in this field are moderately enriched in Ni, moderately depleted in Cu, and contain intermediate values of Co. The sum of Ni + Cu vs. Mn/Fe plots along a hyperbolic regression line derived from nodules of the southeastern Pacific, suggesting that this relationship has general applicability. Regional variations in nodule grade (Ni + Cu + Co) assist in defining pathways of Antarctic Bottom Water between the Southeast Indian Ridge and the Wharton basin.

Data extracted of previously unpublished material by LA Frakes (hdl:10013/epic.46826.d001).From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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: Frakes, Lawrence A (1982): Metal chemistry of manganese nodules from the Cape Leeuwin field, southeast Indian Ocean. Marine Geology, 47(1-2), M1-M10

Identifier
DOI https://doi.org/10.1594/PANGAEA.857971
Related Identifier IsSupplementTo https://doi.org/10.1016/0025-3227(82)90014-7
Related Identifier IsDerivedFrom https://doi.org/10.7289/V52Z13FT
Related Identifier IsDocumentedBy 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.857971
Provenance
Creator Frakes, Lawrence A
Publisher PANGAEA
Publication Year 1982
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 4 datasets
Discipline Earth System Research
Spatial Coverage (98.967W, -41.883S, 118.000E, -34.633N)
Temporal Coverage Begin 1976-01-29T00:00:00Z
Temporal Coverage End 1977-07-01T00:00:00Z