Show simple item record

dc.contributor.authorMukhopadhyay, R.
dc.contributor.authorNath, B.N.
dc.date.accessioned1995-06-19T10:01:38Z
dc.date.accessioned2017-09-30T01:29:47Z
dc.date.available1995-06-19T10:01:38Z
dc.date.available2017-09-30T01:29:47Z
dc.date.issued1988
dc.identifier.citationDeep Sea Research, vol.35; 1988; 1431-1436
dc.identifier.issn0198-0149
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/7035
dc.description.abstractThe morphology and chemistry of ferromanganese nodules and encrustations from a seamount in the Central Indian Ocean Basin show local variations. Nodules from the summit of the seamount have sporadic distribution, are less spherical, have smooth surfaces, have lowest oxide/nucleus (O/N) ratios, and contain low values of Mn/Fe, Ni and Cu. In contrast, nodules from plains at the base of the seamount show greater abundance, are more spherical, have rougher surfaces, register high O/N ratios, and highest Mn/Fe, Ni and Cu. An increase in element concentration (Mn/Fe, Ni%, Cu%) and roughness of nodule surface is directly proportional to the increased thickness of the "acoustically transparent layer". Morphochemical characters of these nodules suggest hydrogenetic and diagenetic formation in the summit and plain areas, respectively
dc.languageen
dc.publisherElsevier
dc.relation.ispartofDeep-Sea Res
dc.relation.isreferencedbySCI
dc.subjectGeology and Geophysics
dc.subject.otherconcretions
dc.subject.othergeomorphology
dc.subject.otherferromanganese nodules
dc.subject.othertopography
dc.subject.otherseamounts
dc.subject.otherISW, Indian Ocean
dc.titleInfluence of seamount topography on the local facies variation in ferromanganese deposits in the Indian Ocean
dc.typeJournal Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record