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Chemical composition of marine manganese nodules from four potential mining s...
Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 110°C for 24 hours and ground to powder before their... -
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... -
Rare-earth element analyses for iron-manganese crusts of the Pacific Ocean
Iron-manganese crusts were chosen from existing collections in order to cover as wide an area and depth range as possible. Sampling was concentrated in the Central Pacific... -
Neodymium isotope ratios for iron-manganese crusts and manganese nodules of t...
Iron-manganese crusts were chosen from existing collections in order to cover as wide an area and depth range as possible. Sampling was concentrated in the Central Pacific... -
(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... -
Major elements geochemistry of manganese nodules from the Pacific Ocean
Analyses of the bulk oxidation state of marine manganese nodules indicates that more than 98% of the Mn in deep ocean nodules is present as Mn(IV). The samples were collected... -
(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 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... -
(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... -
(Table 12-4, page 360) Percentage loss of water from manganese nodules (on a ...
This chapter discusses the formation and distribution of some metals in ocean-floor manganese nodules in the light of the observed data in the literature and thermodynamic and... -
(Table 3, page 8) Chemical composition and physical cahracteristics of mangan...
This paper reviews the state of the art in processing and extraction of ocean floor manganese nodules. It briefly reviews the mining sites where the abundant rich nodules occur... -
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 wet chemistry (previous...
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 microprobe analysis (pr...
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 manganese nodules and crusts from the Pacific and Ind...
The first part of this thesis includes some topics of a non-geochemical nature but which are of importance in interpreting the geochemistry of nodules. The points covered... -
(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 1, page 1376) Chemical analyses of manganese nodules and crusts from t...
A compilation of chemical analyses of Pacific Ocean nodules using an x-ray fluorescence technique. The equipment used was a General Electric XRD-5 with a tungsten tube. Lithium...
