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Bulk chemical analysis of selected manganese nodules retrieved during VA13/2 ...
Manganese nodules from VA13/2 cruise (R/V Valdivia) were selected for a variety of morphologies and size. They were regrouped by size class and chemically analyzed in bulk. Mn,... -
Rare earths and minor elements chemical composition of internal layers of VA ...
On the basis of the macroscopically visible layers, chemical analyses were carried out on various ferromanganese crust samples from VA 13/2 (station 237 KD) for minor elements... -
Major elements chemical composition of internal layers of VA 13/2 (station 23...
On the basis of the macroscopically visible layers, chemical analyses were carried out on various ferromanganese crust samples from VA 13/2 (sample 237 KD) for Mn, Fe, Ni, Cu,... -
Chemical analysis of various layers forming a ferromanganese crust retrieved ...
During Valdivia cruise VA 13/2 dredging brought exceptionnally thick Mn crusts on top of basalt. One of these deposits is 22 cm thick and consists of three main zones and... -
Main chemical elements concentration in manganese nodules retrieved in the no...
Manganese nodule deposits exhibit variabity in distribution, deposit density, nodule morphology, and chemistry on scales of meters to thousands of kilometers. The Challenger... -
Detailed description of manganese nodules and micronodules from the R/V Valdi...
An area 20 x 20 nautical miles, within the abyssal hill region of the northern Central Pacific, has been sampled intensively by R/V Valdivia . The sediments represent four... -
On-board determination of the main chemical elements concentration in mangane...
The area selected for the investigations of the VA-13/2 expedition of the Valdivia corresponds to area 2 of the previous VA-08 expedition performed in 1974. Its center...
