Sediment boron and its relation to sediment properties in a tropical estuary

Show simple item record Shirodkar, P.V. Dalal, V.N.K. 1995-06-21T10:01:39Z 2017-09-30T01:29:50Z 1995-06-21T10:01:39Z 2017-09-30T01:29:50Z 1988
dc.identifier.citation Mahasagar, vol.21; 1988; 45-54
dc.identifier.issn 0542-0938
dc.description.abstract Boron in the sediments of Mandovi estuary varied from 8.0 to 258.0 ppm with an average of 118 ppm. It showed an inverse relation to the texture of sediments and was found to be concentrated in silt and clay fraction with generally decreasing concentrations from mouth towards upstream. Seasonal variations of boron indicate all higher values during pre-monsoon (50.8 to 216.0 ppm; av. 128 ppm) while very low to very high concentrations during post-monsoon (8.0 to 258.0 ppm; av. 108 ppm). During monsoon itself narrow range was observed with moderate concentrations (87.0 to 148.0 ppm; av. 118 ppm). Clay minerals by x-ray diffractometry of sediments showed the presence of Kaolinite + chlorite (av. 60%), Illite (av. 15%) and Montmorillonite (av. 6.5%) while the non-clay minerals like Feldspar (av. 4.84%) and Quartz (av. 8.67%) were found all along the estuary and the Gibbsite (av. 9.84%) was found only in the upstream
dc.language en
dc.publisher Indian Association for Limnology and Oceanography
dc.relation.ispartof Mahasagar
dc.relation.isreferencedby NON-SCI
dc.subject Geology and Geophysics
dc.subject.other x-ray diffraction analysis
dc.subject.other clay minerals
dc.subject.other monsoons
dc.subject.other seasonal variations
dc.subject.other chemical elements
dc.subject.other boron
dc.subject.other sediments
dc.subject.other geochemistry
dc.subject.other ISW, India, Goa, Mandovi estuary
dc.title Sediment boron and its relation to sediment properties in a tropical estuary
dc.type Journal Article CSIR-National Institute of Oceanography, Dona Paula, Goa, India

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