Chemical composition of manganese nodules and crusts from the Southwest Pacific recovered during R/V Tangaroa Expedition 22 in 1974, supplement to: Glasby, Geoffrey P; Bäcker, Harald; Meylan, Maurice A (1975): Metal contents of manganese nodules from the Southwestern Pacific Basin (Manuscript version). Erzmetall, 28(7-8), 340-342


During a research cruise of the New Zealand research vessel Tangaroa 1974 large manganese nodule fields with high density have been discovered in the Southwest Pacific. The chemical analysis was carried out on the dredges showing average grades of 16.7% Mn, 21.1% Fe, O, 22% Cu, o, 4o% Ni and O, 38% Co. The highest copper and nickel contents are at l% and therefore below the limit of 3%, which must be exceeded in general today, when the ore is to be regarded as an economically interesting . Comparisons of different analysis of manganese nodules size fractions showed that there are little differences in the chemical composition associated with nodule size. Also, the value of metal content in well-preserved nuclei volcanogenic nuclei is comparable with that of the nodule surface areas.

Metadata Access
Creator Meylan, Maurice A;Glasby, Geoffrey P;Bäcker, Harald
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1975
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (40S-22S,165W-160W)
Temporal Point 1974-05-12T11:59:59Z