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Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: Seismic imaging of slab metamorphism and genesis of intermediate-depth intraslab earthquakes

Fig. 3

Metamorphic 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)

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