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Accumation rates of manganese in manganese nodules using total alpha activity
The manganese content of 4 manganese nodules was determined by atomic absorption. The decrease of total alpha activity was used to evaluate Mn accumulation. Because CaCO3 is a... -
Chemical composition of manganese nodules and ferromanganese crusts from the ...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Rare earth chemical composition of manganese nodules and ferromanganese crust...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Detailed observation of some manganese deposits from the Atlantic and Indian ...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
(Table XXXV, pages 238-241) Chemical composition of nodules from the Atlantic...
The H2O is determined by air-drying the nodule samples at 200°C for two hours. The loss on ignition (LOI) is then measured after a one hour heating at 1100°C. In reducing the... -
(Table 3, page 92-93) Chemical composition of bulk ferromanganese oxide depos...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Annotated record of the detailed examination of Mn deposits in the Atlantic O...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Ferromanganese crusts and nodules chemical analyses from the USGS Woods Hole ...
Beginning in 1983 the USGS searched major oceanographic institution dredge archives for samples and data relevant to the USGS Woods-Hole Ferromanganese Crust Data Base. With the... -
Annotated record of the detailed examination of Mn deposits
Beginning in 1983 the USGS searched major oceanographic institution dredge archives for samples and data relevant to the USGS Woods-Hole Ferromanganese Crust Data Base. With the... -
Ferromanganese crusts and nodules chemical analyses from the USGS Reston anal...
Based on comparative studies on the utility of ICP, atomic absorption, and other techniques for the elemental analysis of geological samples the authors decided to pursue a... -
Carbonate-free basis chemical composition of sediments from the Bauer Deep
Sediment cores of the Bauer Deep were obtained by standard piston-coring techniques on cruises of the R/V Atlantis II (no. 54) and R/V Chain (no. 100) of the Woods Hole... -
Lead isotope ratios for manganese nodules
The authors have selected manganese nodules broadly representative of world oceanic areas. Approximately 1 gram of each manganese nodules was leached with 25-mi 6N HC1. Lead was... -
Chemical composition of ferromanganese nodules near the Manihiki Plateau, Pac...
International Nickel Company (INCO) as a large operator of nickel mines investigated the mining potential of manganese nodules in the Pacific Ocean. It became interested in... -
Determination chemical constituents in manganese deposit samples from the Pac...
X-ray emission spectroscopy (XES) was used to analyse manganese nodules and crusts from the Pacific Ocean retrieved during expeditions from the Scripps Institution of... -
Determination chemical constituents in manganese deposit samples from the Pac...
Atomic absorption spectrophotometry (AAS) was used to analyse manganese nodules and crusts from the Pacific Ocean retrieved during expeditions from the Scripps Institution of... -
Mercury contents of selected marine manganese nodules
Manganese nodules were selected from various areas of the Pacific, Indian and Atlantic ocean. They were analysed using a mercury vapour discharge technique. The minimum... -
Chemical analyses of Fe-Mn nodules from the Indian Ocean
Mn nodule samples were decomposed with HCl and fumed with H2S04. SiO2 was estimated by the standard procedure of HF. The residue, after the removal of SiO2, was fused with... -
Chemical composition of Pacific manganese nodules and crusts analyzed at Scri...
23 manganese nodules and crusts from 17 sites in the Pacific Ocean were analyzed at Scripps Institution of Oceanography using X-ray emission spectrometry (XES). Samples were... -
Rare-earth and minor elements concentration in manganese nodules and crusts f...
The study reported here involved the analysis of 12 rare earth and 13 minor elements in 13 nodules from the S.W. Pacific; 1 nodule from equatorial N. Pacific (DOMES Site C) as... -
(Table 2, page 1052) Palladium, iridium and gold contents of some oceanic man...
The abundance and distribution of palladium, iridium and gold has been determined in manganese nodules from widely varying locations and geological environments within the...
