1,317 datasets found

A complete processing method has been experimentally developed at laboratory scale for the future extraction of metlas from manganese nodules. The digestion of the nodules is...

The major and minor element composition of ferromanganese nodules from DOMES Site A has been determined by X-ray fluorescence methods. Three phases appear to control the bulk...

The deposits studied by the author are crusts and coatings of manganese oxide (mixed psilomelane, wad and limonite) on a consolidated marl. They were recovered from the lake...

Geochemical analysis of manganese nodules collected from Indian ocean aboard R/V Marion Dufresne with wet chemistry. Digitized Table 2.From 1983 until 1989 NOAA-NCEI compiled...

Nereus Deep is situated within the NW-SE trending median valley of the Red Sea and is divided along its length by a saddle into two parallel basins. Each basin contains a number...

In 1972, the R/V Bosei was commissionned by the Geological Survey of Japan (GSJ) to undertake a survey within the framework of the Basic investigations for development of deep...

Deepsea Ventures Inc. conducted a series of assessments and tests regarding the mining of manganese nodules in the Blake Plateau area. These operations were made using the R/V...

Chemical analyses were made on one hundred and forty five powder samples taken from defined parts of manganese nodules retrieved during the GH80-5 campaign of the R/V...

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,...

As a part of a continuing study of the distribution and abundance of tellurium in various materials of the earth's crust, analyses were made of 12 samples of manganese nodules...

Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 110°C for 24 hours and ground to powder before their...

Manganese nodules were selected from various potential mining sites of the Pacific ocean. They were dried by heating at 1000°C until total evaporation and ground to powder...

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...

During the GDP-8 cruise of R/V Bosei-Maru, scientists from the Tokai University surveyed the Kinan seamount chain and the Kyushu-Palau Ridge in the Phillippine Sea. They dredged...

Manganese nodules were retrieved during various cruises of the R/V Vema and R/V Robert Conrad from Lamont Doherty Earth Observatory (LDEO). Their chemical composition was...

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...

The chemical composition of sediments at various levels inside core 710KH also show a clear distinction between the overlying calcareous, siliceous-bearing to siliceous-rich...

The composition of the acid-insoluble residue and hydrolysate fraction has been determined for manganese nodules retrieved along an equatorial Pacific transect surveyed during...

Inside core 710KH, manganese micronodules are much more abundant in the coarse fraction (> 40 μm) of the dark brown clay horizon than in the upper sedimentary unit and are...

Manganese nodules and crust were retrieved during the KH-68-3 campaign of the R/V Hakuho-Maru. Their chemical composition was determined by a combination of methods: traditional...