Fig. 6From: Seismic anisotropy of Opalinus Clay: tomographic investigations using the infrastructure of an underground rock laboratory (URL)Tomography of P-wave traveltimes. A velocity model. B DWS. The black line in A indicates the transition between shaly and carbonate-rich sandy facies facies at height of the inversion plane. The outline of the tunnel is shown as white polygon in all figuresBack to article page