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Geochemistry on manganese nodules from the central Pacific
During Cruise VA 04/2 of the R. V. Valdivia in 1972, numerous samples were collected of manganese nodules, sodiments, and the pore water of the Sediments in the area betwoen 6°... -
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... -
Analyses of Manganese nodules off Izu Island
Manganese nodules have been found by the author in the shallow waters of the Hyotan-se bank west of Shikime-jima, an island of the Izu archipelago in the Sea of Japan. The... -
Elemental composition of various manganese nodules
Manganese nodules have been observed over wide areas of both the Pacific and Atlantic Oceans, however, deposits in the Pacific Ocean are generally much richer in elements of... -
Description and analyses of manganese nodules from the South-Western Pacific
Manganese nodules from the Campbell Plateau and Macquarie Ridge have been chemically analysed and their compositions compared with other Pacific nodules. No significant... -
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... -
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... -
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... -
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... -
Chemical composition and description of a ferromanganese crust, sample 89D, o...
A manganese oxide encrustation (2.5 kg) was dredged, in an island arc setting, downslope of Bertrand bank, a seamount culminating at 70-m depth and located NNE of Grande-Terre,... -
Chemical composition of manganese nodules from the Southern Pacific
Deep sea manganese nodules from the Southern Ocean have been studied using chemical analysis, X-ray diffraction, optical mineragraphic and electron probe microanalysis... -
Description and chemical composition of ferromanganese nodules from Station 1...
226Ra is used to document the growth histories of six manganese nodules from Oneida Lake, New York. Detailed sectioning and analysis reveal that there are discontinuous... -
Description of, and 238U, 234U, 232Th and 230Th measurements on a nodule from...
Two diagenetic manganese nodules from the Peru Basin were investigated by thermal ionization mass spectrometry and high resolution alpha spectrometry for uranium and thorium.... -
Analysis of Mn-nodules from Breitgrund, Baltic Sea
The usually high concentrations of Zn, Pb, Cd, and Cu in the most recently accreted portions of ferromanganese nodules from the western Baltic Sea are thought to reflect... -
Investigation of manganese nodules from the Southern Tasman Sea
Two manganese nodules having a high clay content, a low Mn/Fe ratio, and low contents of valuable metals (Ni 0.25%, Cu 0.17%, Co 0.06%) were recovered in a grab sample during a... -
Structure and chemistry of TECHNO encrustations
Using as a starting point the results giving 'traditional' growth rates as determined by the decrease of radioelements (part I) and the hypothesis of rapid formation, the... -
TECHNO encrustation description and analysis
The distribution of radioactivities in a large polymetallic encrustation (TECHNO) sampled from the Pacific sea floor has been studied in great detail. The study includes... -
Geochemistry of manganese nodules from a British Columbia fjord
Concretions of iron and manganese oxides and hydrous oxidesóobjects commonly called manganese nodulesóare widely distributed not only on the deep-sea floor but also in shallow... -
Geochemistry of a manganese nodule from the WALDA (R/V Jean Charcot) expedition
During the 1971 WALDA expedition of the R/V Jean Charcot in the Equatorial and South Atlantic, manganese nodules were recovered at Station 24 - DS 17 at the base of the...