The inverse modeling of water-rock interaction

Interpreting water chemistry in the framework of reaction kinetics is a complex procedure that involves three distinct (and superimposed) inverse model approaches: the first one devoted to the appraisal of the continuum, the second one to the (local) resolution of reaction surfaces and the third to the evolution of these last parameters in a time mode scale. The first two steps imply modifications of the informational content of the system, which may be properly analyzed in terms of marginal probability density in the space of the model. This analysis for the third step is more difficult, due to the usual non linearity between model parameters and observables.