95 datasets found

48 manganese nodules from the Pacific Ocean were selected by the authors for detailed analysis. "Bulk chemical composition" gives, unless otherwise indicated, the results of...

Manganese nodules were retrieved during the KK72 (Midway 72-07-02) campaign using a CNEXO free-fall grab system. Selected samples were chemically analysed in bulk using Atomic...

Manganese nodules were retrieved during the SO06 (R/V Sonne) and COPANO (R/V Le Suroit) campaigns as part of the international "Hawaii-Tahiti Transect Program" initiated at the...

Manganese nodules and sediment samples were collected in the Central and South-West Pacific ocean during R/V Sonne campaign SO06 as part of the I.C.I.M.E. (International...

Manganese nodules were retrieved from the Pacific Ocean during the CNEXO-NIXO campaign and the GH76 and GH80 campaigns of the R/V Hakurei-Maru. Their chemical composition was...

11 stations were occupied during the survey carried out by CCOP/SOPAC on the UNDP charter vessel MACHIAS over an area southeast of Tarawa, western Kiribati. Retrieved manganese...

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 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...

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...