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dc.contributor.authorIyer, S.D.
dc.contributor.authorPinto, S.M.
dc.contributor.authorSardar, A.A.
dc.date.accessioned2018-06-15
dc.date.accessioned2020-02-04T09:38:17Z
dc.date.available2018-06-30
dc.date.available2020-02-04T09:38:17Z
dc.date.issued2018
dc.identifier.citationIndian Journal of Geo Marine Sciences, vol.47(6); 2018; 1121-1131
dc.identifier.urihttp://nopr.niscair.res.in/handle/123456789/44492
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8174
dc.description.abstractPresent study is the phillipsite grains present in a siliceous sediment core (water depth 5100 m) recovered near a seamount from the Central Indian Ocean Basin (CIOB). Phillipsite occurs as single grains, cruciform crystals and as simple to complex twinned forms. Chemical composition (av SiO 2 56 wt%, Al 2 O 3 19 wt%, Na 2 O 3 wt%, K 2 O 9 wt%) and the Si/Al ratio (av 2.58) of the phillipsite are comparable with those reported from the Pacific Ocean. The formation of phillipsite depends on parameters such as the availability and type of precursors, the pH-Eh conditions, formation time and temperature, and type of processes. Low temperature halmyrolysis of precursors such as altered basaltic fragments and palagonite resulted in intra-sedimentary diagenesis and formation of abundant phillipsite grains.
dc.languageen
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleCharacteristics and genesis of phillipsite grains in a sediment core from the Central Indian Ocean Basin
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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