Impact of lateral variations of geologic facies on water resources in homogeneous basins: example of tertiary plateaus in the Paris Basin - Université de Reims Champagne-Ardenne Accéder directement au contenu
Article Dans Une Revue Geodinamica Acta Année : 2015

Impact of lateral variations of geologic facies on water resources in homogeneous basins: example of tertiary plateaus in the Paris Basin

Résumé

Spatial disparity of run-off conditions during low-water period in homogeneous watersheds depends on the degree of incision of valleys, but may also be influenced by a structural partitioning or some lateral variations in the aquifer lithology. For small basins (area <300 km2), often hydrometrically unsupervised, campaigns of serial flow measurements, gauging, conductivity and temperature are achieved. The Ardre basin, localised in the Tertiary formations of the Paris Basin is used as a workshop basin. Results validated by hydrological and physico-chemical profiles show increased hydrological yields in the basin which correspond to the increase in the thickness of aquifers and their porosity. These lateral variations of facies and of aquifer thicknesses are related to Eocene sedimentary conditions (Lutetian) for homogeneous basins, which explain the spatial disparity of water resources.

Dates et versions

hal-01690006 , version 1 (22-01-2018)

Identifiants

Citer

Alain Devos, Nicolas Bollot, L. Chalumeau, Gilles Fronteau, O. Lejeune. Impact of lateral variations of geologic facies on water resources in homogeneous basins: example of tertiary plateaus in the Paris Basin. Geodinamica Acta, 2015, 27 (1), pp.15 - 24. ⟨10.1080/09853111.2014.979531⟩. ⟨hal-01690006⟩
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