(Table 1, Page 181 Chemical analysis of a manganese nodule from the Pacific Ocean

DOI

A seabed nuclear probe which was designed to measure up to 30 elements at parts per thousand to parts per hundred levels has been tested for the analysis of simulated manganese nodule fields. The probe contains a neutron source, californium-252, which activates the elements in the nodules. The resulting radioelements which emit characteristic gamma radiation are analyzed in situ during 2 to 200 second counting intervals with Ge{(Li) or NaI(Tl) detector systems. The spectra taken in situ in a marine environment show excellent resolution and indicated the feasibility of mapping the density and economic value of manganese nodules. The study demonstrated the feasibility of in situ analysis to map the Mn, Al, Co, V, and Cu concentrations in manganese nodule fields, and this information together with correlations between Ni, Co, Cu, and Mn obtained from a related study indicates that Ni concentrations can also be rather precisely estimated.

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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: Wogmann, N A; Rieck, H G; Nielson, H L (1973): In situ analysis of the major and minor elements in manganese nodule fields. In: Phase I Report - Inter-University Program of Research on Ferromanganese Deposits of the Ocean Floor. Seabed Assessment Program, IDOE, NSF, Washington D.C., USA, 179-185

Identifier
DOI https://doi.org/10.1594/PANGAEA.876581
Related Identifier https://store.pangaea.de/Projects/NOAA-MMS/Wogman_1973_IDOE.pdf
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.876581
Provenance
Creator Wogmann, N A; Rieck, H G; Nielson, H L
Publisher PANGAEA
Publication Year 1973
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 26 data points
Discipline Earth System Research
Spatial Coverage (-116.233 LON, 22.000 LAT); Pacific Ocean