The aluminosilicate fraction of North Pacific manganese nodules

Geochimica et Cosmochimica Acta
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Nine nodules collected from throughout the deep North Pacific were analyzed for their mineralogy and major-element composition before and after leaching with Chester-Hughes solution. Data indicate that the mineral phillipsite accounts for the major part (> 75%) of the aluminosilicate fraction of all nodules. It is suggested that formation of phillipsite takes place on growing nodule surfaces coupled with the oxidation of absorbed manganous ion. All the nodules could be described as ternary mixtures of amorphous iron fraction (Fe-Ti-P), manganese oxide fraction (Mn-Mg Cu-Ni), and phillipsite fraction (Al-Si-K-Na), these fractions accounting for 96% of the variability of the chemical composition. ?? 1981.
Publication type Article
Publication Subtype Journal Article
Title The aluminosilicate fraction of North Pacific manganese nodules
Series title Geochimica et Cosmochimica Acta
Volume 45
Issue 11
Year Published 1981
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Geochimica et Cosmochimica Acta
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