653 datasets found

The samples analysed were dredged on Pleiades Leg II during a program of heat flow measurements, bottom photography and coring. They are located on topographic mounds in a band...

This cruise was undertaken as part of the CCOF/SOPAC Work Programme CCSP-1/CK-1 (Sea bed investigation for manganese nodules in oceanic areas adjoining Cook Islands),...

The expedition "RISEPAC" in 1961 of Scripps Institution of Oceanography crossed the East Pacific Rise at about 12-14°S between 90° and 140 °W, securing heat flow measurements...

The samples studied have been taken from the Central Pacific area during the research cruise Midpac '81. Metal concentration was determined by Atomic Absorption Spectrophometry...

A manganese nodule was recovered from station No. 18 of cruise Mn-74-01 of the R/V Moana Wave as part of the field work of the NSF-IDOE Inter-University Ferromanganese Research...

Local variability of manganese nodule facies and associated sediments were studied around abyssal hills (60 x 60 km²) located in the equatorial zone of the Central Pacific...

103 nodule samples from each station of the GH81-4 survey from R/V Hakurei Maru were split; one half for microscopy on polished sections and one half for X-ray diffraction (XRD)...

The samples were collected from R/V "Yaquina" at 13°40'S, 102°8'W during cruise YALOC-73 of Oregon State University. The Mn nodules were sorted by morphological type before...

Samples were collected from R/V "Yaquina" during cruise YALOC-73 of Oregon State University. The six Mn nodules and four Mn crusts from Y73-3-22D station in the Bauer Basin were...

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...

Co-rich manganese crusts were retrieved during the SO33 (MIDPAC IIa) expedition of R/V Sonne. They were analysed for their chemical composition using X-ray fluorescence both on...

Pacific Ocean manganese nodule materials were obtained from Dr. Jane Frazer, Scripps Oceanographic Institute, La Jolla, CA as small portions of a larger nodule sample. It is not...

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...

Kennecott Copper Corporation became interested in manganese nodules in part based on the publications of Dr. John Mero and work being done at Scripps Institution of...

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,...

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...

Ten manganese nodules from the Northeast Pacific Ocean have been sampled from box cores retrieved during R/V Valdivia campaign V13/1. Cross-sections for each of the nodules have...

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...

Manganese nodules have been shown to consist of heterogeneous mixtures of a variety of biogenic, detrital and authigenic particles in a finely laminated structure. On a...