247 datasets found

During the ten R/V Hakurei-Maru cruises from 1984 through 1988 in the Northwestern Pacific island-arc area, a widespread occurrence of hydrogenetic iron-manganese crusts and...

Mn crust samples were taken from dredge hauls collected at 16 sites by the Hawaii Institute of Geophysics. They are located along the Line Islands Archipelago between 15°S and...

The chemical composition of ferromanganese crusts retrieved during the KK84 cruise of R/V Kana Keoki was determined using methods developed by Toth, J. R. from Oregon State...

The dredges and cores described in this report were taken on KK84-04-28 and KK84-08-24 expeditions in June-August 1984 by the Hawaii University (HIG) from, the R/V Kana Keoki. A...

During the MIDPAC IIB (SO37) expedition the chemical metal composition of ferromanganese samples in major and selected trace elemnts was determined by the Technical University...

The dredges described in this report were taken on the R/V Sonne during the MIDPAC 2B (SO37) expedition in May-August 1985 by the Technical University of Clausthal-Zellerfeld...

During the MIDPAC IIA (SO33) expedition the chemical metal composition of ferromanganese samples in major and selected trace elemnts was determined by the Technical University...

The dredges described in this report were taken on the R/V Sonne during the MIDPAC 2A (SO33) expedition in July-August 1984 by the Technical University of Clausthal-Zellerfeld...

Manganese nodules retrieved by early cruises of the R/V Hakuho Maru in the Pacific Ocean and the R/V Umikata Maru in the Indian Ocean have been chemically analysed for their...

Manganese nodules retrieved by early cruises of the R/V Hakuho Maru in the Pacific Ocean and the R/V Umikata Maru in the Indian Ocean have been chemically analysed. Samples were...

9 manganese crusts retrieved from the Manihiki Plateau area by R/V Tui have been analysed by instrumental neutron activation analysis in order to characterize their geochemical...

During the evaluation of marine mineral resources of the Samoan region sponsored by CCOP/SOPAC program (ESCAP, United Nations) the R/V Machias successfully retrieved a number of...

Knowledge of the oxidation states and of the chemical speciation of metals in ferromanganese deposits is of interest to aid in understanding the association of metals with the...

During cruise L582SP of R/V Lee from USGS, dredges performed on the Tonga ridge have retrieved manganese crusts deposited on sandstone formations. These samples have been...

Manganiferous materials were collected at 49 stations in the Central Pacific Basin, the Mid-Pacific Mountains, the Manihiki Plateau, and the Penrhyn Basin during cruise GH80-1....

The moisture content and the minor element contents were determined for 115 sediment samples collected from the G H 80-1 survey traverses of the Central Pacific Wake-Tahiti...

The 127 sediment samples of this study (Table XIV-1) were selected on the ship from 17 piston cores and 27 box cores, which were taken by shipboard members from 44 locations...

Ferromanganese crusts were selected from two cruises performed by R/V Moana Wave in early 1986 and 1987 within territorial waters of the Cook Islands, Kiribati, Tuvalu and...

Chemical assessment of trace metals concentrations in a selected set of manganese crusts and coatings from the Pacific Ocean. Composition has been determined by atomic...

During R/V T. Thompson cruise TT-192 around the the Mariana and Volcano Volcanic Arcs 60% of the dredge recoveries contained ferromanganese deposits. Substrate rocks consisted...