Abstract
Low values of Ca/Mg ratio (4·7–14·0) have been obtained in the skeletal and non-skeletal (oolite) components of the carbonate fraction of the sediments on the continental shelf off Bombay, a terrigenous-carbonate province. Low ratio has been attributed to the greater quantity of magnesium present. The excess magnesium is assumed to be derived from various sources. The principal sources being dolomite and magnesium rich foraminifera and algae. Subsidiary amounts is expected to be contributed by incorporation from the magnesium-rich shelf waters which in turn may have derived the magnesium from dissolution from the sediment and in part by river discharge.
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Communicated by Dr. N. K. Panikkar,f.a.sc.
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Nair, R.R., Murali, R.S. & Kidwai, R.M. Ca++/Mg++ ratios in the sediments on the continental shelf off Bombay. Proc. Indian Acad. Sci. 74, 29–36 (1971). https://doi.org/10.1007/BF03050459
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DOI: https://doi.org/10.1007/BF03050459