Fig. 2From: Heterogeneity in friction strength of an active fault by incorporation of fragments of the surrounding host rockVertical profiles of mineral assemblages in the fault zone of the Atera fault. The yellow, brown, and gray areas represent light gray fault gouge, brown fault gouge, and black fault breccia, respectively. Mineral component data are from Kato et al. (2015). Sample and photograph image locations are shown in Fig. 1c. Note the variation in the horizontal axes of the profiles (Line d)Back to article page