The pe to be used for distributing redox elements and for calculating saturation indices is specified by the Note that valence states are identified by the chemical symbol for the element followed by the valence in parentheses. The SOLUTION data block defines the composition of seawater. A comment about the calculations performed in this simulation is included with the TITLE keyword. The input data set for this example calculation is shown in table 11. These data for seawater are given in table 10. The essential data needed for a speciation calculation are the temperature, pH, and concentrations of elements and (or) element valence states. , is derived from WATEQ4F (Ball and Nordstrom, 1991) and includes uranium.] [One of the database files included with the program distribution, To demonstrate how to expand the model to new elements, uranium is added to the aqueous model defined by This example calculates the distribution of aqueous species in seawater and the saturation state of seawater relative to a set of minerals.
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