Fig. 1From: Litho- and biostratigraphy of the Opalinus Clay and bounding formations in the Mont Terri rock laboratory (Switzerland)Location of the Mont Terri rock laboratory within the Mont Terri anticline and geological situation of BDB-1 borehole (adapted from Caër et al. 2015). For comparison, the location of borehole BDS-5 is also displayedBack to article page