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dc.contributor.authorRao, D.G.
dc.contributor.authorKrishna, K.S.
dc.date.accessioned2006-08-22T12:35:30Z
dc.date.available2006-08-22T12:35:30Z
dc.date.issued2005
dc.identifier.citationJournal Geological Society Of India, vol.65(5); 609-617pp.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/250
dc.description.abstractCompressional wave velocities (Vp) and index properties of 70 mini- gabbroic rock- core samples of 2.5 cm diameter x 2.1 cm long from 157.1 m below seafloor in Hole 1105Aof the Atlantis Bank, Southwest Indian Ridge, were measured in the laboratory. Comparison of the Vps and onboard lithostratigraphy revealed that the Vps of the gabbros and olivine gabbros are very close and have the values 6.74±0.04 and 6.7±0.07 km/s, respectively Oxides and oxide olivine gabbros have markedly lower Vps (6.53±0.076 and 6.59±0.077 km/s) respectively as abundance of Fe-Ti oxide minerals vary as a result of alteration processes. They are also consistent with well-log results of Hole 1105A and Hole 735 B from the bank. The mean bulk density of the rocks is 2.93±0.15 gm/c3. The other index properties - porosity, void ratio and grain density and their means are consistent with model populations of the rock minerals.
dc.format.extent186114 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherGeological Society of India
dc.rightsThis digitized version of the paper hosted with the permission from Geological Society of India.
dc.subjectCompressional wave velocities
dc.subjectCores
dc.subjectGabbroic rocks
dc.subjectAtlantis Bank
dc.subjectSouthwest Indian Ridge
dc.subjectporosity
dc.titleCompressional wave velocity and index properties of the gabbroic rocks drilled at hole 1105A of the Atlantis Bank, southwest Indian Ridge
dc.typeJournal Article


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