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Chemistry of manganese nodules from the Cape Leeuwin field off Western Australia

Created 24/06/2017

Updated 24/06/2017

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A preliminary report on the manganese nodule field southwest of Western Australia published in this Journal recently (Frakes, Exon and Granath, 1977) quoted chemical analyses which were carried out on air-dried material. Significantly higher metal values have been recorded in some later analyses done on nodules dried at 105°C. Tests have shown that the ground, air-dried material retains considerable moisture, which accounts for the higher metal values of the later analyses. The average water content (after drying at 105°C) has been determined at 16 percent. The relevant chemical data now available on this material are summarised in the accompanying table: in this table metal values (by atomic absorption spectrophotometry) have been recalculated assuming a moisture content of 16 percent.

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Title Chemistry of manganese nodules from the Cape Leeuwin field off Western Australia
Language English
Licence Creative Commons Attribution 4.0 International
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