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Dissolved Gallium In The Northwest Pacific And The South And Central Atlantic Oceans: Implications For Aeolian Fe Input And A Reconsideration Of Profiles, Alan M. Shiller, Gautam Raj Bairamadgi

Faculty Publications

[1] The distribution of dissolved gallium, a less-reactive analogue of aluminum, has the potential to reveal information about the averaged dust input to the surface ocean and to complement studies using aluminum as a tracer. New data are presented here on the distribution of dissolved Ga, including six profiles in the south and central Atlantic as well as seven shallow and two deep profiles from the northwest Pacific. The Atlantic data allow for an estimate of Ga in Antarctic Bottom Water ( similar to 25 - 30 pmol kg(-1)) and show reasonably conservative behavior in deep waters. In the northwest …