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dc.contributor.authorNath, B.N.
dc.contributor.authorRoelandts, I.
dc.contributor.authorSudhakar, M.
dc.contributor.authorPluger, W.L.
dc.date.accessioned2009-05-08T12:01:01Z
dc.date.available2009-05-08T12:01:01Z
dc.date.issued1992
dc.identifier.citationGeophysical Research Letters, Vol.19; 1197-1200p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/3051
dc.description.abstractRare earth element (REE) concentration have been determined in terrigenous, siliceous (nodule barren and nodule bearing), calcareous, and red clay from the Central Indian Basin. The bulk distribution of REE, and in particular the relative cerium fractionation, in these surface sediments has been studied in relation to bottom water conditions. REE fractionations within a single depositional environment are found to be characteristic for each sediment type, with flat shale-normalized patterns associated with terrigenous sediments, positive Ce anomalies with siliceous sediments, negative Ce and positive Eu anomalies with calcareous sediments, and LREE-depleted patterns with pelagic red clays. There is no relation of any REE fractionation to bottom water redox conditions. Our results indicate that the REE signatures in marine sediments are not only related to depositional setting, but also to the lithological variations, and surficial diagenetic processes. Therefore, these further constraints on understanding REE behaviour indicate that REE fractionations for paleotectonic and paleoredox reconstructions should be used with caution
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.rightsCopyright [1992]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.titleRare earth element patterns of the Central Indian Basin sediments related to their lithology
dc.typeJournal Article


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