An occurrence of similar to 74 ka Youngest Toba Tephra from the Western Continental Margin of India

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dc.contributor.author Parthiban, G.
dc.contributor.author Shane, P.
dc.contributor.author Pattan, J. N.
dc.contributor.author Banakar, V. K.
dc.contributor.author Pearce, Nicholas J. G.
dc.date.accessioned 2011-08-01T08:33:26Z
dc.date.available 2011-08-01T08:33:26Z
dc.date.issued 2011-08-01
dc.identifier.citation Parthiban , G , Shane , P , Pattan , J N , Banakar , V K & Pearce , N J G 2011 , ' An occurrence of similar to 74 ka Youngest Toba Tephra from the Western Continental Margin of India ' Current Science , pp. 1322-1326 . en
dc.identifier.other PURE: 169857
dc.identifier.other dspace: 2160/7217
dc.identifier.uri http://hdl.handle.net/2160/7217
dc.description Pattan, J. N., Shane, P., Pearce, N. J. G., Banakar, V. K., Parthiban, G. (2001). An occurrence of similar to 74 ka Youngest Toba Tephra from the Western Continental Margin of India. Current Science, 80(10), 1322-1326. en
dc.description.abstract A dispersed volcanic ash layer was recovered at similar to 300 cm depth in a 5.52 m long sediment core collected at a latitude 9 degrees 21 'N and longitude 71 degrees 59 'E from a water depth of 2300 m on the Western Continental Margin of India (WCMI). Glass shards from ash layer were studied for morphology, major, trace and rare earth element concentration to trace the source, Bubble wall junction-type morphology of glass shard suggests magmatic origin. shards have high SiO2 (77%) and total alkalis (8.5%), indicating rhyolitic composition. The major, trace and rare earth element composition of these glass shards are indistinguishable from that of Youngest Toba ash of similar to 74 ha from the Northern Sumatra and confirm as the source. The new occurrence of Youngest Toba Tuff from the WCMI, Central Indian Ocean Basin and South China Sea Basin suggests a reassessment of the ash volume and global climatic implications. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof Current Science en
dc.title An occurrence of similar to 74 ka Youngest Toba Tephra from the Western Continental Margin of India en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Other IGES Research en
dc.description.status Peer reviewed en


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