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Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation

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Platinum group elements and gold in ferromanganese crusts from Afanasiy-Nikitin seamount, equatorial Indian Ocean: Sources and fractionation; 2007; Article; Journal; Journal of Earth System Science; Banakar, V. K.; Hein, J. R.; Rajani, R. P.; Chodankar, A. R.

Summary

The major element relationships in ferromanganese (Fe-Mn) crusts from Afanasiy-Nikitin seamount (ANS), eastern equatorial Indian Ocean, appear to be atypical. High positive correlations (r = 0.99) between Mn/Co and Fe/Co ratios, and lack of correlation of those ratios with Co, Ce, and Ce/Co, indicate that the ANS Fe-Mn crusts are distinct from Pacific seamount Fe-Mn crusts, and reflect region-specific chemical characteristics. The platinum group elements (PGE: Ir, Ru, Rh, Pt, and Pd) and Au in ANS Fe-Mn crusts are derived from seawater and are mainly of terrestrial origin, with a minor cosmogenic component. The Ru/Rh (0.5-2) and Pt/Ru ratios (7-28) are closely comparable to ratios in continental basalts, whereas Pd/Ir ratios exhibit [...]

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Type Scheme Key
local-index unknown 70032985
local-pk unknown 70032985
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1007/s12040-007-0002-x
series unknown Journal of Earth System Science

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journalJournal of Earth System Science
parts
typevolume
value116
typeissue
value1
languageEnglish
citationTypeArticle

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