Show simple item record

dc.contributor.authorRao, V.P.
dc.contributor.authorNath, B.N.
dc.identifier.citationIndian Journal of Marine Sciences, vol.17; 1988; 202-207
dc.description.abstractDT, IR and X-ray diffraction analyses have been carried out on 3 grain size fractions (1, 1-2 and 2-4 mu m) of sediments from the Central Indian Ocean Basin. Results indicate that there are 2 smectite minerals (montmorillonite and Fe-rich montmorillonite). Montmorillonite is present in all size fractions of sediments, whereas Fe-rich montmorillonite is present only in 1 and 1-2 mu m fractions of siliceous and 1 mu m fractions of pelagic clays. Distribution of clay minerals suggests that illite, chlorite and kaolinite are the detrital products from Ganges and Brahmaputra and montmorillonite is derived from the weathering of the ridge rocks-Fe-rich montmorillonite in siliceous and pelagic clay is a result of early diagenetic processes. Size fraction studies suggest that montmorillonite tends to crystallise in 2 mu m size range
dc.relation.ispartofIndian J Mar Sci
dc.subjectGeology and Geophysics
dc.subject.otherx-ray diffraction analysis
dc.subject.otherferromanganese nodules
dc.subject.otherpelagic clay
dc.subject.othersediment distribution
dc.subject.otherISW, Central Indian Ocean
dc.titleNature, distribution and origin of clay minerals in grain size fractions of sediments from manganese nodule field, Central Indian Ocean Basin
dc.typeJournal Article

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record