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    Aluminium in the northwestern Indian Ocean (Arabian Sea)

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    Mar_Chem_47_203.pdf (731.7Kb)
    Date
    1994
    Author
    Upadhyay, S.
    SenGupta, R.
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    Abstract
    The distribution of Al has been studied along two transects (approx 15 and 18 degrees N) in the Arabian Sea The waters of the Arabian Sea along the Indian coast are relatively enriched in Al (approx 55-74 nM) over the offshore surface waters (approx 37-52 nM) A pronounced maximum in the surface mixed layer suggests the dissolution of Al from atmospherically derived particles to be the sourec of excess Al in the offshore waters of the Arabian Sea, compared to other oceanic regions The characteristic Al decrease in the deeper waters of the Arabian Sea indicates its intense scavenging in the water column A residence time of approx 8.4 yr for Al in the Arabian Sea, with respect to the combined input of Al from fluvial and atmospheric sources, corroborates the high reactivity of Al in the oceans.
    URI
    http://drs.nio.org/drs/handle/2264/7465
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