River water suspended load normalization

Fig. 6b. Lanthanide concentrations in seawater normalized to river water suspended load (Piepgras and Jacobsen 1992) are shown for average deep water and average surface water.

Figures 6a and b provide the results of direct log (Mr) observations for average deep water and average surface water (a) normalized to North American Shale Composite (log(MT)sN) and (b) normalized to river water suspended load (Piepgras and Jacobsen 1992). Figure 6c shows the log + L /8n(M)[L ]") term in eq. (2) calculated at...

Fig. 7. Predicted log7f(M) values (eq. 2) consistent with figs. 6a-c are shown for pH = 7.9. Figure 7a shows data using the NASC normalization and fig. 7b shows the results obtained for a river water suspended load...

Figure 10.18. Effect of pH on residual metal concentration in fresh waters. Dissolved zinc is plotted against pH. (a) Zinc in relatively undisturbed major rivers including the Yangtze (Chiang Jiang) and tributaries of the Amazon and Orinoco, (b) Zinc normalized to total dissolved solids for the same set of major rivers, (c) Zinc in pH-adjusted aliquots of Mississippi River water (April 1984, 103 mg liter suspended load, pH 7.7) the adjusted aliquots were allowed to equilibrate overnight before filtration and analysis. (From Shiller and Boyle, 1985.) (d) Zinc in different mountain lakes in the southern parts of the Swiss Alps. These lakes are less than 10 km apait, so that the atmospheric inputs can be considered to be uniform over this scale, but their water composition (pH) is influenced by different bedrocks in their catchments. A similar dependence on pH has also been observed for Cd and Pb but this dependence is less pronounced with Cu(II) when solute complex formation counteracts adsorption (data 1983-1992). (From Sigg et al., 1995, in press.)...

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