Growth rate and chemical composition of a manganese nodule from the EEZ of Seychelles
Abstract
mhe ferro-manganese nodule collected in EEZ of Seychelles yields a growth rate of 1.5 mm/10 6Y 230Th (ex)/ and 230Th (ex)/ 232Th activity ratio methods indicating very slow growth of ferro-manganese nodules. The Mn/Fe and U/Th ratios suggest that the genesis of the studied nodule is of hydrogenetic origin
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