Total dissolvable and dissolved aluminum (TDAl, DAl) and manganese (TDMn, DMn) concentrations were measured at 12 stations in and around the Solomon Sea in 2012 as part of the GEOTRACES GP-12 cruise. These data were used to determine the potential for the Solomon Sea to act as a source of Al and Mn to the Equatorial Undercurrent (EUC). From a net budget perspective, waters entering the Solomon Sea at the time of the cruise were already enriched in Al and Mn, and as that water transited through the Solomon Sea, further net enrichments were small compared to overall concentrations of these metals. Despite this overall balance, on a local scale, we observed enrichment of Al and Mn at stations located near coastlines, most likely caused by sediment scouring by strong currents. Calculated fluxes of DAl, and TDAl out of the Solomon Sea relative to the EUC are large enough to account for about three quarters of their respective budgets within the EUC, while the DMn and TDMn fluxes exiting the Solomon Sea can only account for about half of their respective budgets in the EUC. These fluxes are subject to high temporal variability and to uncertainty of the relative contributions of Northern and Southern Hemisphere water mass to the EUC.

2012 年，作为 GEOTRACES GP-12 巡航的一部分，在所罗门海及其周围的 12 个站点测量了总可溶解和溶解铝（TDAl、DAl）和锰（TDMn、DMn）浓度。这些数据用于确定所罗门海作为赤道暗流 (EUC) 的铝和锰来源的潜力。从净预算的角度来看，航行时进入所罗门海的水域已经富含铝和锰，当这些水通过所罗门海时，与这些金属的总体浓度相比，进一步的净富集很小。尽管存在这种总体平衡，但在局部范围内，我们在靠近海岸线的站点观察到铝和锰的富集，这很可能是由强水流冲刷沉积物造成的。DAl 的计算通量，所罗门海的 DMn 和 TDAl 相对于 EUC 大到足以占其各自在 EUC 内的预算的四分之三左右，而离开所罗门海的 DMn 和 TDMn 通量仅占其各自预算的一半左右欧盟委员会。这些通量受高度时间可变性和北半球和南半球水量对 EUC 的相对贡献的不确定性的影响。