Show simple item record

dc.contributor.authorMukherjee, A.D.
dc.contributor.authorIyer, S.D.
dc.date.accessioned2009-01-10T10:23:29Z
dc.date.available2009-01-10T10:23:29Z
dc.date.issued1999
dc.identifier.citationCurrent Science, Vol.76; 296-304p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1760
dc.description.abstractThe Central Indian Ocean Basin (CIOB) is an enigmatic ocean basin in the young and tectonically complex Indian Ocean. Major tectonic and volcanic forms identified are fracture zones, abyssal hills, seamounts and ridges and a unique zone of intraplate deformation. Petrology indicates the presence of basalts, ferrobasalts and spilites. The basalts have erupted from moderately evolved magmas, the ferrobasalts from a long residing and shallow seated magma body while the spilites have formed due to the hydrothermal effect on the pre-existing subalkaline basalts. Besides these rocks, there is a wide occurrence of pumice of probably in situ origin. A distinct relation occurs between the morpho-tectonic forms and the volcanics. For example, in and around the topographic highs, pillow and massive basalts are common while close to fracture zones, flow lavas occur. Two significant volcanic activities: one during the formation of the near-axis generated seamounts and the other in an intraplate environment are perceived
dc.language.isoen
dc.publisherCurrent Science Association, Bangalore, India
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.subjectocean basins
dc.subjectplate tectonics
dc.subjectvolcanism
dc.subjecttopographic features
dc.subjectpetrology
dc.subjectmagma
dc.subjecthydrothermal activity
dc.subjectpumice
dc.titleSynthesis of morphotectonics and volcanics of the Central Indian Ocean Basin
dc.typeJournal Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record