1,840 datasets found

ur continuous photographic transects (45 to 90 km in extent) were made with deep-towed, wide-angle cameras over the manganese pavement region of the Blake Pla¬teau. The photos...

A seabed nuclear probe which was designed to measure up to 30 elements at parts per thousand to parts per hundred levels has been tested for the analysis of simulated manganese...

Sediments dredged from the flat top of Capricorn Seamount on the eastern edge of the Tonga Trench show it to be of probable Miocene Age. Tonga Trench is judged to be early or...

Cosmogenic beryllium-10 activities have been measured in marine accumulations of up to about 6 m.y age by conventional beta counting technique and by accelerator mass...

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...

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

This report presents barrel descriptions of deep-sea sediment cores obtained by the Hawaii Institute of Geophysics on cruises of the R/V Mahi during 1970 in the western Pacific...

This report represents the first in a projected series reporting core descriptions and their physical properties, to be made available through routine core handling procedures...

Five ferromanganese crusts and 6 ferromanganese nodules samples collected by the Joint Chinese-West Germany Geophysical Investigation Team in May—June, 1987 during the SO49...

Detailed mapping of manganese deposits in the Kauai Channel and on the Waho Shelf adjacent to the northwest corner of Oahu is near completion. Manganese crusts and nodules are...

The technique of accelerator mass spectrometry (A.H.S.) has opened up a number of new potential geochronological applications of long lived cosmogenic nuclei- However the...

Quantitative and qualitative chemical analyses were performed on fourteen manganese nodules and crusts from the Waho Shelf. The analyses showed that submarine weathering has...

This paper, explores the possibility of using manganese nodules for studying the rates of authigenic removal of trace elements to the ocean floor, i.e. considering only trace...

The data presented in this report is the result of investigations carried out by a number of laboratories on a suite of rocks dredged from the Mid - Atlantic Ridge at 45°N by F....

The sea floor of the western Pacific is covered by five stratigraphic units: (l) an eastward thinning wedge of late Tertiary silty clay, primarily of volcanic origin, (2) a...

The cores and dredges described are taken during the R/V New Horizon RISE III Expedition from April until May 1979 by the Scripps Institute of Oceanography. A total of 36 cores...

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...

The cores and dredges described in this report were taken during the Vema 16 Expedition from October 1959 until September 1960 by the Lamont Geological Observatory, Columbia...

The cores described are taken during the R/V Thomas Washington DEEPSONDE Cruise in February 1976 by the Scripps Institute of Oceanography. A total of 10 cores and dredges were...