Fig. 5From: Hydro-mechanical evolution of the EDZ as transport path for radionuclides and gas: insights from the Mont Terri rock laboratory (Switzerland)Fracture statistics derived from tunnel mapping and borehole logging: a line-counted frequencies from the side walls of the niches in the security gallery (after Bossart et al. 2002) and b fracture counts in 0.5 m borehole intervals from the EZ-B Niche and previous sub-parallel excavations (from Yong 2007)Back to article page