Fig. 2From: Chronology of Quaternary terrace deposits at the locality Hohle Gasse (Pratteln, NW Switzerland)Map with the Quaternary terrace units (NT, HT, TDS and HDS) of the Rhine River. In addition, the Sundgau gravels are shown, which are believed to have a Pliocene age based on biostratigraphic dating (Petit et al. 1996; Fejfar et al. 1998). The red bold square shows location of Fig. 4. (© Federal Office of Topography, swisstopo, CH-3084 Wabern)Back to article page