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Analysis of manganese deposits from the Pacific Ocean
Sea floor dredging by the H.M.S. Challenger, the U.S.S. Albatross, the U.S.S. EPC(R) 857, and vessels of the Scripps Institution of Oceanography shows that extensive deposits of... -
Analysis of radioactive manganiferous nodules from Tanokami, Japan
Characteristic black nodules have been retrieved in 1922 from the bed of the Kichijo River, that runs along the Tanakamiyama mountain in the Oni Province and ends into Lake Biwa... -
Manganese concretions from Kara Sea and Karelia
The determinations of the radioactivity of a series of ferro-manganese concretions of the seas and lakes of the U.S.S.R. (especially of the Kara Sea and lakes of Karelia) have... -
Analysis of Manganese nodules from Sonne cruises SO06/1 and /2, “Hawaii-Tahit...
Manganese nodules research has focused on the area between the Clarion Fracture Zone to the North and the Clipperton Fracture Zone to the South where significant concentrations... -
Manganese nodules recovered by R/V Vityaz expedition
Uranium, radium, thorium and ionium were determined directly on seven concretions from three stations in the Indian Ocean, and on two concretions and a manganese-rich crust from... -
Description and analysis of ferromanganese nodules in the Pacific Ocean
Ferromanganese nodules in the Pacific Ocean were analysed. From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles,... -
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... -
Mineral resources in Lower Brule Indian Reservation
On the Lower Brule Indian Reservation in South Dakota, about 3 million tons of metallic manganese are in low-grade deposits in the DeGrey Member of the Pierre Shale on the... -
Nodule analyses of VA 04 (R/V Valdivia) samples, done at the Scripps Institut...
Some cores and samples of the VA 04 (R/V Valdivia) expedition were placed in the SIO Collections by Gustav Arrhenius in 1976. The associated nodules analyses were later included... -
Analysis of Mn-nodules from the Indian Ocean
This report studies the principal paramters governing the distribution of iron-manganese concretions on the sea floor of the Indian Ocean, as well as their petrography and... -
Analyses of manganese deposits in the Riding Mountain area
Several bog manganese deposits were discovered in the Riding Mountain area in Manitoba during the spring and summer of 1940. A study was made of the known deposits to determine... -
Composition of fossil manganese nodules from Costa Rica
Horizons of several types of Upper Jurassic to Lower Cretaceous manganese nodules occur locally in sequences of radiolarian cherts within the Nicoya Ophiolite Complex (NW Costa... -
Detailed measurements of radium inside a nodule of Albatross 1899-1900 - for ...
Thanks to the courtesy of the British Museum of Natural History the author obtained from their Challenger collections two small nodules, and through a similar courtesy of the... -
Metal content of nodules at Sea Scope stations based upon different analysis ...
Information on possible resource value of sea floor manganese nodule deposits in the eastern north Pacific has been obtained by a study of records and collections of the 1972... -
Description and chemical composition of manganese nodules collected during Ha...
The cores and dredges described in this report were taken on the KH-72-2 Expedition in October-December, 1972 by the Ocean Research Institute, University of Tokyo from the R/V... -
Chemical analysis of manganese nodules from the Cape Leeuwin field, southeast...
Manganese nodules from 36 stations in the Cape Leeuwin field were analyzed for Mn, Fe, Ni, Cu and Co and the results were combined with earlier work to demonstrate quantitative... -
Description and chemical composition of manganese deposits during the deep-se...
This monograph forms the fourth part of the tenth volume of the scientific results of the voyage of the German exploring ship Valdivia in the Atlantic and Indian Oceans, made... -
Description and geochemical composition of manganese nodules retrieved from L...
A large deposit of ferromanganese oxide coated sands and scattered manganese nodules occurs in the northern portion of Lake Ontario. The Mn and Fe contents of the concretions... -
Description and chemical composition of manganese nodules collected in the Pa...
Chemical and X-ray analyses were performed on the fifteen manganese nodules collected from the Pacific Ocean floor. The results were discussed compared with the previous data on... -
Description and chemical composition of manganese nodules in a core located i...
Three nodules from a core taken north of Puerto Rico are composed chiefly of an x-ray amorphous, hydrated, iron-manganese oxide, with secondary goethite, and minor detrital...