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dc.contributor.authorSaraswat, R.
dc.date.accessioned2011-03-07T05:49:11Z
dc.date.available2011-03-07T05:49:11Z
dc.date.issued2010
dc.identifier.citationJournal of the Palaeontological Society of India, vol.55(2); 2010; 65-68
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/3794
dc.description.abstractA selective preferential dissolution of a few initial chambers of several specimens of calcareous planktic foraminifera Globigerinoides rubber has been noted in the surface sediments collected from the eastern Arabian Sea and northern Bay of Bengal. Based on a recent finding stating the capability of foraminifera to modulate the vacuolar seawater pH for easy secretion of calcite, it is postulated that these initial two-three chambers were formed at relatively higher pH conditions, inside the cyst during asexual reproduction. The secretion of chambers at relatively higher pH results in increased incorporation of magnesium into the calcareous test. This increased Mg carbonate probably renders the initial chambers more prone to dissolution. The findings have an implication for the application of G. ruber for paleoclimatic/paleoceanographic studies
dc.language.isoen
dc.publisherThe Palaeontological Society of India
dc.rightsCopyright [2010]. 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.subjectGlobigerinoides ruber
dc.subjectforaminifera
dc.subjectIndian Ocean
dc.subjectbreakage
dc.titleDifferential dissolution of biogenic carbonates: Implications of secretion at higher pH
dc.typeJournal Article


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