A study of fluoride,calcium and magnesium in the Northern Indian Ocean |
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Authors: | R Sen Gupta Sugandhini Naik S.Y.S Singbal |
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Affiliation: | National Institute of Oceanography, Dona Paula, Goa 403004 India |
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Abstract: | Estimation of fluoride in the Northern Indian Ocean gives an average concentration of 1.31 ± 0.01 mg/l and a F/Cl ratio of (6.84 ± 0.01) · 10?5. The Ca/Cl ratio in the area is 0.02229 ± 0.000005 with an average calcium concentration of 432 ± 5 mg/l. In the Bay of Bengal this ratio is influenced by river runoff while in the Arabian Sea the outflow from the Red Sea increases the ratio. The Mg/Cl ratio is observed to be 0.06631 ± 0.00003 with an average magnesium concentration of 1281 ± 14 mg/l. Neither the river runoff nor the Red Sea outflow has any influence on this ratio. Similarities or differences of these values spatially and with reference to literature data are discussed. |
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