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INTRODUCTION
Inverse Modeling
Inverse modeling is used to deduce geochemical reactions that account for the change in chemical composition of water along a flow path. At least two chemical analyses of water are needed at different points along the flow path as well as a set of phases that are potentially reactive along the flow path. From the analyses and phases, mole balance models are calculated. A mole balance model is a set of mole transfers of phases that accounts for the change in composition along the flow path. Normally, only SOLUTION keyword data blocks and an INVERSE_MODELING keyword data block are needed for inverse modeling calculations. However, additional reactant phases may need to be defined with PHASES or EXCHANGE_SPECIES keyword data blocks.
PhreeqcI--A GUI for the Geochemical Program PHREEQC - 10 OCT 97
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