3,706 datasets found

In order to evaluate the possible influence of hydrothermal activity on Fe-Mn coatings found on the surfaces of basaltic rocks in the median part of Transform Fault "A", a few...

Sampled hydrothermal deposits from Transform fault 'A' on the Mid-Atlantic Ridge have been classified into two main categories according to the relative proportion of the black...

Preliminary results of chemical analysis of thirteen ferro-manganese nodules dredged from the Mariana and Ogasawara regions via the KH-84-1 cruise are presented. Five Mn nodule...

Of the 26 samples collected during VA-05/1 cruise of R V Valdivia during 1972, 19 were nodules of different forms, 4 ferromanganese crusts and 3 cylindral nodules. Nodules and...

During R/V T. Thompson cruise TT-192 around the the Mariana and Volcano Volcanic Arcs 60% of the dredge recoveries contained ferromanganese deposits. Substrate rocks consisted...

For assessing their desulfuration and mineral potential, manganese rich concretions were selected from the stations of the AMC-11-67 cruise performed by ESSA (NOAA) in October...

In the mid 1970s Kennecott Exploration, Inc. conducted various systematic studies on the chemical composition of manganese nodules and crusts in order to determine the...

The data encoded in the Scripps Institute of Oceanography Nodule Data Bank (SNDB) was used as a model for the publication of USGS Ferromanganese Crusts Data Bank. The chemical...

Manganese nodules and crusts from the Pacific and the Indian oceans were analyzed at Scripps Institution of Oceanography using atomic absorption spectrophotometry (AAS). Samples...

Manganese nodules and ferromanganese crusts deposited on igneous rocks from the Southern Ocean have been chemically analysed after dessication. Al, Ba, Ca, Co, Cu, Fe, Mg, Mn,...

A geochemical (major and trace elements including rare earths) study was made of core samples drilled between the Touamotou Archipelago and the Marqueses Islands during the...

Manganese nodules from expeditions conducted by the Scripps Institution of Oceanography (SIO) in the Clarion-Clipperton Fracture Zone (CCZ) in the Pacific Ocean have been...

International Nickel Company (INCO) as a large operator of nickel mines investigated the mining potential of manganese nodules in the Pacific Ocean. It became interested in...

Manganese crusts and nodules were retrieved from dredges and grabs performed during Cruise D16 of R.R.S. Discovery. Samples were analysed by a combination of atomic absorption...

X-ray emission spectroscopy (XES) was used to analyse manganese nodules and crusts from the Pacific Ocean retrieved during expeditions from the Scripps Institution of...

Atomic absorption spectrophotometry (AAS) was used to analyse manganese nodules and crusts from the Pacific Ocean retrieved during expeditions from the Scripps Institution of...

Manganese nodules, crusts and micronodules from dredges and cores were retrieved during campaign DM14 of R/V Dmitry Mendeleev in the Pacific Ocean. Their chemical composition...

Samples of sediment associated with manganese nodules from the south Penrhyn Basin were analyzed for a number of elemental concentrations. Chemical analyses were performed by...

Samples of manganese nodules from the south Penrhyn Basin were analyzed for a number of elemental concentrations. Chemical analyses were performed by the Australian Mineral...

Manganese nodules and crusts samples analyzed in this work were chosen to represent a range of marine environments both oceanic and epicontinental. They were analysed by...