Distribution of Organic Matter, Iron, Mangenese in SurfaceSediments in the Nansha Islands Sea Area, South China Sea

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摘要 Concentrationsoforganicmatter,ironandmanganeseinthedeepseasurfacesedimentsintheNanshaIslandsseaarea,SouthChinaSeaaremeasured.Horizontalandverticaldistributionsofironandmanganesearediscussed.Theverticaldistributionofironandmanganeseinthesedimentsresultsfromreduction,diffusion,andredepositionofmanganese(oriron)oxideandhydroxideinthesediment.Therearethemaximaofironandmanganeseinsolidphaseinthetopofthesediment,whichiscausedbythepenetrationofO2andtheupwardfluxofMn2+(orFe2+).Manganesebacteriaplayaveryimportantroleinthecycleofsolid-phaseironandmanganeseintheoceanenvironment.ManganesebacteriaoxidizeMn2+(orFe2+)indissolvedstatetoMn4+(orFe3+)inoxidizedstateundertheaerobiccondition,whereastheyreduceironandmanganeseinanaerobicconditions.
机构地区 不详
出处 《海洋通报:英文版》 2003年2期
出版日期 2003年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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