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Eisen und Mangan in pazifischen Tiefsee‐Rhizopoden und Beziehungen zur Manganknollen‐Genese Iron and Manganese in Pacific Deep‐sea Rhizopods and Relationships to Manganese Nodule Formation
Author(s) -
Riemann Franz
Publication year - 1985
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19850700113
Subject(s) - manganese , nodule (geology) , pelagic sediment , deep sea , context (archaeology) , ferromanganese , geochemistry , geology , chemistry , oceanography , sedimentary rock , paleontology , organic chemistry
The Pacific deep‐sea bottoms are dominated by rhizopodan Protozoa. Their abundance on manganese nodules and in the associated sediments suggests a contribution to nodule formation, though direct evidence is still lacking. Attention is called to iron contents in solid excretion products of some sessile rhizopods that may contribute to the initiation of manganese deposition and nodule growth. Manganese is scarce in the faecal pellets of sediment‐dwelling rhizopods. This is discussed in context with questions regarding manganese mobilization in pelagic sediments.