dc.contributor.author | Iyer, S.D. | |
dc.date.accessioned | 2009-01-10T11:15:55Z | |
dc.date.available | 2009-01-10T11:15:55Z | |
dc.date.issued | 1999 | |
dc.identifier.citation | Journal of the Geological Society of India, Vol.54; 609-620p. | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/1781 | |
dc.description.abstract | Textural, mineralogical and compositional characteristics of basaltic glasses from the Central Indian Ocean show them to be altered to varying extents through their interaction with the seawater, resulting in the formation of palagonite. The major chemical changes are the loss of Si, Mg and Ca and a gain of Na and K whilst, Fe and Ti remained immobile. It reflects that the basaltic glasses have undergone initial to intermediate stages of palagonitisation under low temperature oxidative alterations. Subsequent accretion of ferromanganese oxides over the glasses have halted the progress of alteration | |
dc.language.iso | en | |
dc.publisher | Geological Society of India | |
dc.rights | Copyright [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.subject | basalts | |
dc.subject | mineralogy | |
dc.subject | geochemistry | |
dc.subject | palagonite | |
dc.subject | basalt-seawater interaction | |
dc.subject | texture | |
dc.title | Alteration of basaltic glasses from the Central Indian Ocean | |
dc.type | Journal Article | |