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Ocean trace elements

Other limitations on phytoplankton growth are chemical in nature. Nitrogen, in the form of nitrate, nitrite and ammonium ions, forms a basic building material of a plankton s cells. In some species silicon, as silicate, takes on this role. Phosphorus, in the form of phosphate, is in both cell walls and DNA. Iron, in the form of Fe(III) hydroxyl species, is an important trace element. Extensive areas of the mixed layer of the upper ocean have low nitrate and phosphate levels during... [Pg.20]

Thomas JB, Bodnar RJ, Shimizu N, Sinha AK (2002) Determination of zircon/melt trace element partition coefficients from SIMS analysis of melt inclusions in zircon. Geochim Cosmochim Acta 66 2887-2901 Thompson GM, Malpas J (2000) Mineral/melt partition coefficients of oceanic alkali basalts determined on natural samples using laser ablation-inductively eouple plasma-mass spectrometry (LAM-ICP-MS). Mineral Mag 64 85-94... [Pg.124]

Removal to sediments. Removal of surface-reactive trace elements from the oceans readily occurs by adsorption onto settling particles, and this process is most pronounced in the typically high-energy, particle-rich estuarine environment. Particles are supplied by rivers, augmented by additions of organic material generated within the estuary. Also, floes are created in estuaries from such components as humic acids and Fe. The interaction between dissolved and colloidal species is enhanced by the continuous resuspension of sediments in... [Pg.580]

Borole DV, Krishnaswami S, Somayajulu BLK (1977) Investigations on dissolved uranium, silicon and on particulate trace elements in estuaries. Estuarine Coastal Mar Sci 5 743-754 Borole DV, Krishnaswami S, Somayajulu BLK (1982) Uranium isotopes in rivers, estuaries and adjacent coastal sediments of western India their weathering, transport and oceanic budget. Geochim Cosmochim Acta 46 125-137... [Pg.600]

Do the trace elements remain in true solution, to be diluted throughout the ocean by mixing ... [Pg.289]

Bertine, K.K. and E.D. Goldberg. 1972. Trace elements in clams, mussels, and shrimp. Limnol. Ocean. 17 877-884. [Pg.117]

Fukai, R., B. Oregioni, and D. Vas. 1978. Interlaboratory comparability of measurements of trace elements in marine organisms results of intercalibration exercise on oyster homogenate. Ocean. Acta 1 391-396. [Pg.119]

Livingston, H.D. and G. Thompson. 1971. Trace element concentrations in some modem corals. Limnol. Ocean. 16 786-795. [Pg.121]

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See also in sourсe #XX -- [ Pg.393 ]



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