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Annotated record of the detailed examination of Mn deposits from MIDPAC-1 exp...
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... -
Chemical analyses by XRF Quantometer of south Penrhyn Basin manganese nodules
A CCOP/SOPAC cruise aboard C.I.G.M.F.V. Ravakai in June 1976 found a high density manganese nodule field in the south Penrhyn Basin between Aitu-taki and Penrhyn in the Cook... -
Chemical composition of Pacific manganese nodules using X-ray fluorescence
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... -
Chemical analyses of Fe-Mn nodules from the Indian Ocean
Ten manganese nodules from the Northeast Pacific Ocean have been sampled from box cores retrieved during R/V Valdivia campaign V13/1. Cross-sections for each of the nodules have... -
Chemical analysis of various layers forming a ferromanganese crust retrieved ...
During Valdivia cruise VA 13/2 dredging brought exceptionnally thick Mn crusts on top of basalt. One of these deposits is 22 cm thick and consists of three main zones and... -
Chemical composition of manganese nodules and crusts from the Bauer Basin, Pa...
Samples were collected from R/V "Yaquina" during cruise YALOC-73 of Oregon State University. The six Mn nodules and four Mn crusts from Y73-3-22D station in the Bauer Basin were... -
Chemical composition of crust from R/V Dmitry Mendeleev station 1052. Comapri...
The manganese crust was retrieved from station 1052 during the 14th cruise of the R/V Dmitry Mendeleev. The station is located in Hess Deep in the axis of the Galapagos... -
Chemical composition of Pacific manganese nodules analyzed at Scripps Institu...
5 manganese nodules from 2 sites in the Pacific Ocean were analyzed at Scripps Institution of Oceanography using X-ray fluorescence. Samples were ground to < 74 microns,... -
Chemical composition of Pacific manganese nodules and micronodules analyzed a...
Buried manganese nodules and micronodules from 2 sites in the Pacific Ocean were analyzed at Scripps Institution of Oceanography using wet chemistry. Samples were ground to <... -
Chemical composition of Pacific and Indian ocean manganese nodules and crusts...
Manganese nodules and crusts from the Pacific and Idian oceans were analyzed at Scripps Institution of Oceanography using atomic absorption spectrophotometry (AAS). Samples were... -
Chemical composition of Pacific, Indian and Atlantic ocean manganese nodules ...
Manganese nodules, coatings and crusts from the Pacific and the Indian oceans were analyzed at Scripps Institution of Oceanography using X-ray emission spectrometry (XES).... -
Chemical analysis of manganese nodules and crusts from the Romanche trench ar...
Manganese nodules and manganese crusts covering basalt or volcanic breccia rocks have been analysed using various methods. Energy dispersive X-Ray analysis (EDAX)was used for... -
Energy dispersive X-Ray analysis (EDAX) of layers inside manganese crusts ret...
Energy dispersive X-Ray analysis (EDAX)has been performed on micro-samples extracted from various surface and inside layers of manganese nodules and manganese crusts covering... -
Radiochemical data for layers inside manganese crusts retrieved during the RO...
Radiochemical analyses have been performed on micro-samples extracted from various surface and inside layers of manganese crusts covering basalt or volcanic breccia rocks (see,... -
Radiochemical data for layers inside a buried manganese nodule from core CH71...
Radiochemical analyses have been performed on micro-samples extracted from various surface and inside layers of a buried manganese nodule recovered from core CH71-09 at a depth... -
Radiochemical data for sediments of cores CH71-08 and CH71-09, HARMATTAN camp...
Radiochemical analyses have been performed on 500 mg of each carbonate rich sediment sample (i.d., carbonaceous clay or mud) and 2 g for carbonate devoid samples (i.d.,... -
Accumation rates of manganese in manganese nodules using total alpha activity
The manganese content of 4 manganese nodules was determined by atomic absorption. The decrease of total alpha activity was used to evaluate Mn accumulation. Because CaCO3 is a... -
Accumation rates of manganese in a pelagic sediment core using 231Pa activity
For a pelagic sediment core taken in the Atlantic Ocean, The decrease of unsupported 231Pa was used for the determination of the accretion rate. Because CaCO3 is a Mn-free... -
Accumation rates of manganese in pelagic sediments using Ericson paleontologi...
For 4 pelagic sediment cores taken in the Atlantic Ocean, Ericson's paleontologic boundaries X-Y (75 000 yr) and Y-Z (11 000 yr) were used. The age of the upper boundary was... -
Accumation rates of manganese in pelagic sediments using 130Th activity
For 7 pelagic sediment cores, the decrease in unsupported 130Th activity with depth in the core was used to establish the mean accumulation rate over the last 300 000 years....