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dc.contributor.authorPattan, J.N.
dc.contributor.authorShane, P.
dc.contributor.authorBanakar, V.K.
dc.date.accessioned2009-01-10T11:10:00Z
dc.date.available2009-01-10T11:10:00Z
dc.date.issued1999
dc.identifier.citationMarine Geology, Vol.155; 243-248p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1779
dc.description.abstractVolcanic glass and pumice found in siliceous abyssal sediments of the Central Indian Basin, south of the Equator, have previously been assigned various origins including intra-basin volcanism, Indonesian arc, and Krakatau. Rhyolitic glass shards dispersed from 8 cores that have examined are compositionally identical to those of fallout deposits of the Youngest Toba Tuff erupted at 74 ka from northern Sumatra. The correlation extends the distribution of coarse (> 63 mu m) glass shards some 1500 km south of the previously known fallout zone, and into the Southern Hemisphere (reaching latitudes of ca. 14 degrees S). This provides evidence for bi-hemispheric dispersal of the ash colud and supports global dispersal of gas and aerosods from the eruption. Such dispersal could have facilitated the global impact of the eruption
dc.language.isoen
dc.publisherElsevier
dc.rightsCopyright [1999]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectvolcanic glass
dc.subjectpumice
dc.subjectsiliceous sediments
dc.subjectabyssal zone
dc.subjectvolcanism
dc.subjectvolcanism
dc.subjectvolcanic eruptions
dc.subjectvolcanic ash
dc.subjectdust clouds
dc.subjectdust clouds
dc.subjectenvironmental impact
dc.titleNew occurrence of Youngest Toba Tuff in abyssal sediments of the Central Indian Ocean
dc.typeJournal Article


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