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Geochemistry of Some Marine Fe–Mn Nodules and Crusts with Respect to Pt Contents
Author(s) -
Cabral Alexandre Raphael,
Sattler CarlDiedrich,
Lehmann Bernd,
Tsikos Harilaos
Publication year - 2009
Publication title -
resource geology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 43
eISSN - 1751-3928
pISSN - 1344-1698
DOI - 10.1111/j.1751-3928.2009.00106.x
Subject(s) - seawater , bromine , geology , manganese , mineralogy , heavy element , rare earth element , geochemistry , metallurgy , materials science , rare earth , oceanography , stars , physics , astronomy
Bulk chemical analyses for Pt and Pd in marine Fe–Mn nodules and crusts from different provenances are presented, together with a wide range of elements. Platinum contents vary from 70–328 ppb, whereas Pd contents extend from 0.6–4.7 ppb only. Bromine and Pb show strong positive correlations with Pt. Lead is remarkably enriched in Fe–Mn precipitates over seawater, but Br is a conservative‐type element in seawater and shows no enrichment in Fe–Mn precipitates. Hence, the Pt–Br–Pb element association combines two elements, Br and Pb, of extremely contrasting enrichment factors in Fe–Mn precipitates.