Controls on metal enrichment in ferromanganese crusts: Temporal changes in oceanic metal flux or phosphatisation?

Pierre Josso,Paul Lusty,Simon Chenery,Bramley Murton

Geochimica et Cosmochimica Acta（2021）

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摘要

•Stratigraphic correlation of 75–28 Ma phosphatised and unphosphatised Fe-Mn crusts.•Isocon analysis and comparison of geochemical profiles.•Phosphatisation not responsible for Cu, Ni, Zn, Pt, Te enrichment and Co depletion.•Temporal changes in oceanic metal fluxes the most likely control on chemical variability.

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关键词

Fe-Mn crusts,Phosphatisation,Isocon analysis,Metal fluxes,Critical metals

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