95 datasets found

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...

The ferromanganese crust samples studied have been taken from Central Pacific seamount areas during the research cruise Midpac 81. Two ferromanganese crust generations with...

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...

Bulk chemical analyses of manganese nodules retrieved during the R.V. Tangaroa cruise of May-June 1976. The nodules occur on silty clay. Approximately two-thirds are either...

The study reported here involved the analysis of 12 rare earth and 13 minor elements in 13 nodules from the S.W. Pacific; 1 nodule from equatorial N. Pacific (DOMES Site C) as...

61 manganese nodules from 31 sites in the Central Pacific Ocean were obtained during CCOP/SOPAC cruises in 1980, and from the core collections at the University of Hawaii,...

Manganese nodule deposits exhibit variabity in distribution, deposit density, nodule morphology, and chemistry on scales of meters to thousands of kilometers. The Challenger...

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...

Analyses of the total alpha radioactivity distribution in 31 North Pacific manganese nodules yield an average growth rate of 6.8 ( 2) mm /m.y. Samples from a single box core...

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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other...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 oxide portion of marine manganese nodules deserves intensive study because it probably reflects directly the conditions under which nodules form in the Bea. A better...

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...

Initial data on the hydrogen-isotopic compositions in hydrous Mn minerals from various occurrences fall in a wide range from -298 to -84 per mil, relative to SMOW. DeltaD-values...

The MARIANA I- expedition had three main aims: 1) Performance of an ODP-site pre-survey of a serpentinite diapir in the Mariana fore-arc region; 2) Investigation of volcanism...

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 cruise 9 of the R/V Valdivia was held from the 11 August 1974 to the 5 December 1974 as a survey expedition of the manganese nodule fields situated in the Pacific Ocean...

Cruise MN-74-01 of the R/V Moana Wave was the first part of the field work of the NSF-IDOE Inter-University Ferromanganese Research Program in 1974. This program was designed to...

Chemical analyses of manganese nodules from the Central Pacific Basin show that their chemical composition varies regionally, although that of the associated sediments is...

The cores described in this report were taken on the SEVENTOW Expedition in February-September 1970 by the Scripps Institution of Oceanography from the R/V Thomas Washington. A...