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dc.contributor.authorRao, V.P.
dc.contributor.authorNair, R.R.
dc.contributor.authorHashimi, N.H.
dc.date.accessioned1997-11-28T10:01:00Z
dc.date.accessioned2017-09-29T13:48:35Z
dc.date.available1997-11-28T10:01:00Z
dc.date.available2017-09-29T13:48:35Z
dc.date.issued1983
dc.identifier.citationJournal of the Geological Society of India, vol.24; 1983; 540-546
dc.identifier.issn0016-7622
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/6509
dc.description.abstractSeventy-five sediment samples collected from the Kerala continental shelf and slope during the 17th and 71st Cruises of @iRV gaveshani@@ were analysed by X-ray diffraction for clay mineral cntent. The distribution of total clay (< 4~k fraction) indicates low percentages (< 10%) on the outer shelf and high percentages on the inner shelf (20 to 50%) and upper continental slope (11 to 47%). The clay minerals are composed of montomorillonite (smectite), kaolinite, illite and gibbsite and the non clay minerals are quartz and feldspar. Kaolinite and gibbsite have low values on the outer shelf and high values on the inner shelf and slope, while illite increases in the offshore direction. However, montmorillonite behaves differently from others in having high values on the outer shelf and low values on the inner shelf and slope. These variations in the clay mineral distribution have been attributed to differences in the energy of the various environments and due to size segregation of the minerals
dc.languageen
dc.publisherGeological Society of India
dc.relation.ispartofJ Geol Soc India
dc.relation.isreferencedbySCI
dc.subjectGeology and Geophysics
dc.subject.otherclay minerals
dc.subject.othercontinental shelves
dc.subject.othercontinental slope
dc.subject.othersediments
dc.subject.otherdistribution
dc.subject.otherX ray diffraction analysis
dc.subject.othergrain size
dc.subject.otherISW, India, Kerala
dc.titleClay mineral distribution on the Kerala continental shelf and slope
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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