Abstract

The cave sediments in the galleries near the entrance of the Han-sur-Lesse cave constitute a sedimentary record of the palaeoenvironmental evolution during the end of the Pleistocene, tardi-glacial transition and the Holocene. Lithostratigraphic study and granulometric analysis of three sections (the section of the "Galeries des Potirons", the section of the "Cave a Vin", the section of the "Galerie des Petites Fontaines") enable to reconstruct the hydrological evolution of those galleries at the end of the last glacial period. This reconstruction is dated by uranium-series disequilibrium datings on speleothems and 14 C datings on charcoals.

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