962 datasets found

The authors have analysed the chemical composition of "zero-age" samples from the Mid-Atlantic Ridge and compared them with similar results obtained for the East Pacific Ridge...

This report presents megascopic descriptions of deep-sea sediment cores obtained by personnel of the Hawaii Institute of Geophysics on cruises of the R/V Kana Keoki in the...

The unusual petrological diversity of abyssal lavas erupted along some segments of the Galapagos spreading center is a direct consequence of the propagation (elongation) of...

Volcanic rocks, dredged from depths greater than 1000 m on the Galapagos spreading center, show extreme chemical diversity, including rhyodacites, andesite, ferro-basalts, and...

Diorites, associated with basalts, basalt breccias, and serpentinized peridotites, occur in situ on the faulted scarps of two seamounts from the western High Fractured Plateau...

Analysis of manganese nodules recovered from the Blake Plateau by Deepsea Ventures Inc. From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database...

Measurements of Pb-210 activities, in conjunction with micropaleontological, geotechnical and sedimentological observations, on sediment cores have been used to characterize two...

The southernmost part of the Sohm Abyssal Plain in the Northwest Atlantic Basin is geographically distal with respect to the major source of Quaternary terrigenous material...

A total of 36 coring stations were worked during the cruise of which twenty-five were successful. Both piston and free-fall gravity coring techniques were employed and the cores...

The American Deep Sea Drilling Project (JOIDES) has agreed to drill several holes into the deep sea sediments at sites in the NE Atlantic suggested by UK and French scientists....

Ferromanganese deposit samples (nodule and crust) taken from cores and dredges retrieved during the past R/V Marion Dufresne cruise from 1973 until 1992 are stored in the...

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...

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...

The dredges, free-fall grabs, cores and camera sled photographies described in this report were taken during the Midpac '81 expedition with RV Sonne (SO 18) in the Pacific...

Eighteen stations were occupied; 13 dredge hauls were collected on seamount, atoll, and island flanks and three box cores were taken from the sediment cap of an unnamed seamount...

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...