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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... -
(Tables 1, page 287) REE chemical composition of manganese nodules from the P...
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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 1, page 287) Chemical composition of ocean manganese nodules from the ...
Samples were dried for 24 hours at 60° C.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and... -
(Table 1, page 1218) Potassium and Argon data for dating the core of various ...
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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 XXX, pages 182-221) Chemical analyses of manganese nodules and crusts ...
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... -
Tellurium analyses of 12 samples of manganese oxide nodules from the Pacific ...
As a part of a continuing study of the distribution and abundance of tellurium in various materials of the earth's crust, analyses were made of 12 samples of manganese nodules... -
(Table 1, page 67) Chemical analyses and XRD determined mineralogy of mangane...
The uptake of Ni and Co in the hydrous Mn oxide or the amorphous Fe-oxide phases of ferromanganese deposits in the oceans was studied by electron-microprobe analyses of 17... -
(Tables 1, page 287) Chemical composition of manganese nodules from the Pacif...
Bulk composition of ferromanganese nodules from the pelagic environment of the Pacific Ocean is apparently related to nodule-growth rate, sediment-accumulation rate, and... -
(Table 1, pages 646) Uranium analyses of selected manganese nodules from the ...
Uranium concentrations in a large number of marine sediment samples of different types with world-wide spatial distribution have been determined using the rapid, precise and... -
(Table 1, pages 646) Uranium, thorium and protactinium analyses of selected m...
The Th230/Pa231 activity ratio in 7 of 11 manganese nodules is less than 10.8, the theoretical production ratio of activities in the ocean. This finding indicates difierential... -
Chemical composition of ocean manganese nodules using X-ray fluorescence anal...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Chemical composition of ocean manganese nodules using Quantum emission spectr...
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other... -
Chemical composition of ocean manganese nodules using Atomic absorption spect...
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, page 351-359) Chemical composition of manganese nodules and crusts fr...
Chemical and mineralogical analyses of manganese nodules from a large number of widely spaced localities in the Pacific and Indian Oceans have shown that their mineralogy and... -
Chemical Analyses of manganese nodules ferromanganese crust from the World Ocean
Using X-ray fluorescence spectrometry major and trace elements have been estimated over a larhe variety of manganese nodules and crusts from th Pacific and the Indian Ocean. Of... -
(Table 2, page 2172) Chemical analytical data on thirty-two manganese nodules...
Mn, Fe, Ca, Co, Ni, Cu, Zn, Cd, Sn, Tl, Pb and Bi have been estimated in thirty-two nodules from the Pacific, Atlantic and Indian oceans. Various features about the composition... -
(Table 8, page 38) Spectrographic analyses of deep sea manganese nodules from...
In an earlier paper by two of the authors the conclusion was reached that the 33 recognized species of oxides of Mn could be separated into 3 groups: 1) those which appeared to... -
(Plate 3) Manganese nodules and deep-sea sediment core from Pacific Ocean
A synoptic review of the studies of well-known occurrences of palagonite tuffs is presented. Included are palagonite tuffs from Iceland, and pillow-lava palagonite complexes... -
Annotated record of the detailed examination of Mn deposits from the FANFARE ...
The cores described in this report were taken on the FANFARE Expedition in July 1959 by Scripps Institution of Oceanography from the R/V H. M. Smith and the R/V Spencer F.... -
Analysis of Mn-deposits from the Pacific
The concentrations of rare-earth elements (REE) have been measured in 31 ferromanganese nodules from the Pacific and Indian Oceans and vary by almost a factor of 5. Too few...
