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Regional modelling of groundwater flow and salt and environmental tracer transport in deep aquifers in the Paris Basin |
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| Authors: | Huai Fu Wei Emmanuel Ledoux and Ghislain De Marsily |
| Institution: | 1 Centre d'Information Géologique, Ecole Nationale Supérieure des Mines de Paris, 35 rue Saint-Honoré, 77305, Fontainebleau, France 2 Laboratoire de Geologie Appliquée, Université Pierre et Marie Curie, La Place Jussieu, 75252, Paris, France |
| Abstract: | A hydrodynamic model which takes into account the aquitard storage effect was developed for the deep multilayered system including the Dogger aquifer and its surroundings in the Paris Basin. It provides a good explanation for a series of observations in the Dogger concerning, for instance, the hydraulic head, the salinity and the transmissivity. The calibration of the model also makes it possible to estimate some unmeasured parameters such as the aquifer and aquitard storage coefficients. Finally, the results of simulations of the transport of 4He and 14C strengthen the representativeness of the model. The Darcy average horizontal velocity in the Dogger, obtained with the model, is of the order of 0.33m year?1. |
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