Fig. 3From: Seismic imaging of slab metamorphism and genesis of intermediate-depth intraslab earthquakesMetamorphic facies and maximum H2O contents. a Mid-ocean ridge basalt (MORB) and b harzburgite. H2O contents in wt% are shown by the color scale. Estimated pressure–temperature paths for the slab crust under Tohoku, Costa Rica, Nankai, and Cascadia are indicated as shaded areas in a PA, prehnite–actinolite, eA epidote amphibolite, eB epidote blueschist, and jeB jadeite–epidote blueschist. (After Hacker et al. 2003b)Back to article page