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Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: An introductory review of the thermal structure of subduction zones: III—Comparison between models and observations

Fig. 4

a Reproduction of a model by Ishii and Wallis (2020) for the subduction environment thought to be responsible for the burial of rocks later exhumed in the Sanbagawa belt. With high shear heating (controlled by the effective friction coefficient \(\mu ^\prime\)) the top of the slab reaches observed maximum P-T conditions indicated by the gray triangle. b The heating of the slab below the shear zone by thermal diffusion is inefficient. Even a short distance from the top of the slab where the heating occurs the temperature falls below the observed conditions. Model temperatures shown in solid lines is for \(\mu ^\prime =0.2\). For comparison we plot the Moho temperature of the case without shear heating as well

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