Observed salinity changes in the Alappuzha mud bank, southwest coast of India and its implication to hypothesis of mudbank formation

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dc.contributor.author Muraleedharan, K.R.
dc.contributor.author DineshKumar, P.K.
dc.contributor.author B. Srijith
dc.contributor.author PrasannaKumar, S.
dc.contributor.author John, Sebin
dc.contributor.author NaveenKumar, K.R.
dc.date.accessioned 2017-03-01T11:14:23Z
dc.date.available 2017-03-01T11:14:23Z
dc.date.issued 2017
dc.identifier.citation Continental Shelf Research, vol.137; 2017; 39-45
dc.identifier.uri http://drs.nio.org/drs/handle/2264/5103
dc.description.abstract Alappuzha mud bank draws special attention among the twenty-mud bank locations reported along the Kerala coast by its remoteness from riverine sources. Among several hypotheses proposed for the formation of mud bank, the subterranean hypothesis was most accepted because of the occurrence of low salinity in the bottom layers. The present study provides evidence to show that occurrence of low salinity waters near the bottom in the mud bank region is an artifact of measuring technique employed for the measurement of salinity. The usual technique of conductivity based salinity determination completely fails in the presence of water laden with high amount of suspended sediment. Laboratory experiments were conducted to determine the response of electrode and conductivity cell sensor types to determine the salinity using a range of suspended sediment in the water column. Actual sediment samples from the mud bank region were utilized for the above studies. Based on field observations and experiments, we conclude that the low salinity was the manifestation of the presence highly turbid fluid mud formation in the mud bank region rather than the influence of fresh water
dc.language.iso en
dc.publisher Elsevier
dc.rights An edited version of this paper was published by Elsevier. Copyright [2017] Elsevier
dc.subject Oceanography and limnology
dc.subject Geology and geophysics
dc.subject Chemistry and biogeochemistry
dc.subject Oceanography and limnology
dc.title Observed salinity changes in the Alappuzha mud bank, southwest coast of India and its implication to hypothesis of mudbank formation
dc.type Journal Article


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