Nature, distribution and origin of clay minerals in grain size fractions of sediments from manganese nodule field, Central Indian Ocean Basin

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dc.contributor.author Rao, V.P.
dc.contributor.author Nath, B.N.
dc.date.accessioned 1995-06-24T10:01:40Z
dc.date.accessioned 2017-09-30T01:29:48Z
dc.date.available 1995-06-24T10:01:40Z
dc.date.available 2017-09-30T01:29:48Z
dc.date.issued 1988
dc.identifier.citation Indian Journal of Marine Sciences, vol.17; 1988; 202-207
dc.identifier.issn 0379-5136
dc.identifier.uri http://drs.nio.org/drs/handle/2264/7059
dc.description.abstract DT, 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.language en
dc.publisher CSIR-NISCAIR
dc.relation.ispartof Indian J Mar Sci
dc.relation.isreferencedby SCI
dc.subject Geology and Geophysics
dc.subject.other x-ray diffraction analysis
dc.subject.other ferromanganese nodules
dc.subject.other kaolinite
dc.subject.other chlorite
dc.subject.other montmorillonite
dc.subject.other pelagic clay
dc.subject.other sediment distribution
dc.subject.other ISW, Central Indian Ocean
dc.title Nature, distribution and origin of clay minerals in grain size fractions of sediments from manganese nodule field, Central Indian Ocean Basin
dc.type Journal Article


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