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(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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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 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... -
(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... -
(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... -
(Table 1, page 1157) DOWNWIND expedition bottom photo stations showing abunda...
Manganese nodules were investigated during the Downwind Expedition, a part of the International Geophysical Year programme of the Scripps Institution of Oceanography of the... -
(Table II, page 668-669) Distribution of elements between minerals soluble in...
Attempts to classify pelagic sediments have been based either on appearance and composition, or on the ultimate origin of the components. In particular it appears feasible to... -
(Table 1, page 10) Cobalt and chromium content in manganese nodules from vari...
The origin of authigenic minerals on the ocean floor has been extensively discussed in the past with emphasis on two major processes; precipitation from solutions originating... -
(Table 1, page 171) Thorium and cobalt content of the total aggregate of mang...
A criterion is suggested for discrimination between ferromanganese oxide minerals, deposited after the introduction of manganese and associated elements in sea water solution at... -
Annotated record of the detailed examination of Mn deposits from DOWNWIND Exp...
The cores described in this report were taken on the DOWNWIND Expedition in October 1957 to February 1958 by the Scripps Institution of Oceanography from the R/V Spencer F.... -
(Table 11-I, page 338) Metal contents (%) of a representative sampling of man...
Two types of deep-sea dredges are currently under development for the mining of the manganese nodules, a deep-sea hydraulic dredge and a mechanical cable-bucket system. Both... -
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... -
Composition of Pacific sea-floor manganese nodules
This collection of data on manganese nodules on the floor of the Pacific Ocean represents all the information that was available to the authors in May, 1964. It is compiled from... -
Description and composition iron-manganese concretions from the Pacific
One the most interesting features of ocean sedimentation is the manganese formations on the surface of the ocean floor in some areas. These are especially widespread in the...
