Editing Gallium (section)

==Gallium in the ocean==
Advances in trace element testing have allowed scientists to discover traces of dissolved gallium in the Atlantic and Pacific Oceans.<ref name="Dissolved Gallium in the Open Ocean">{{cite journal |last1=Orians |first1=K. J. |last2=Bruland |first2=K. W. |date=April 1988 |title=Dissolved Gallium in the Open Ocean |journal=Nature |volume=332 |issue=21 |pages=717–19|doi=10.1038/332717a0 |bibcode=1988Natur.332..717O |s2cid=4323435 }}</ref> In recent years, dissolved gallium concentrations have presented in the [[Beaufort Sea]].<ref name="Dissolved Gallium in the Open Ocean" /><ref name="Dissolved Gallium in the Beaufort S">{{cite journal |last1=McAlister |first1=Jason A. |last2=Orians |first2=Kristin J. |date=20 December 2015 |title=Dissolved Gallium in the Beaufort Sea of the Western Arctic Ocean: A GEOTRACES cruise in the International Polar Year |journal=Marine Chemistry |volume=177 |issue=Part 1 |pages=101–109 |doi=10.1016/j.marchem.2015.05.007 |bibcode=2015MarCh.177..101M }}</ref> These reports reflect the possible profiles of the Pacific and Atlantic Ocean waters.<ref name="Dissolved Gallium in the Beaufort S" /> For the Pacific Oceans, typical dissolved gallium concentrations are between 4 and 6&nbsp;pmol/kg at depths <~150 m. In comparison, for Atlantic waters 25–28&nbsp;pmol/kg at depths >~350 m.<ref name="Dissolved Gallium in the Beaufort S" />

Gallium has entered oceans mainly through aeolian input, but having gallium in our oceans can be used to resolve aluminium distribution in the oceans.<ref name="Shiller 87–99">{{cite journal |last=Shiller |first=A. M. |date=June 1998 |title=Dissolved Gallium in the Atlantic Ocean |journal=Marine Chemistry |volume=61 |issue=1 |pages=87–99|doi=10.1016/S0304-4203(98)00009-7 |bibcode=1998MarCh..61...87S }}</ref> The reason for this is that gallium is geochemically similar to aluminium, just less reactive. Gallium also has a slightly larger surface water residence time than aluminium.<ref name="Shiller 87–99" /> Gallium has a similar dissolved profile similar to that of aluminium, due to this gallium can be used as a tracer for aluminium.<ref name="Shiller 87–99" /> Gallium can also be used as a tracer of aeolian inputs of iron.<ref name="Dissolved Gallium in the northwest">{{cite journal |last1=Shiller |first1=A. M. |last2=Bairamadgi |first2=G. R. |date=August 2006 |title=Dissolved Gallium in the northwest Pacific and the south and central Atlantic Oceans: Implications for aeolian Fe input and reconsideration of Profiles |journal=Geochemistry, Geophysics, Geosystems |volume=7 |issue=8 |pages=n/a |doi=10.1029/2005GC001118 |bibcode=2006GGG.....7.8M09S |s2cid=129738391 |doi-access=free }}</ref> Gallium is used as a tracer for iron in the northwest Pacific, south and central Atlantic Oceans.<ref name="Dissolved Gallium in the northwest" /> For example, in the northwest Pacific, low gallium surface waters, in the subpolar region suggest that there is low dust input, which can subsequently explain the following [[high-nutrient, low-chlorophyll]] environmental behavior.<ref name="Dissolved Gallium in the northwest" />