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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Simple topographic parameter reveals the along-trench distribution of frictional properties on shallow plate boundary fault

Fig. 3

Considering the weight of basal dip angle β. A Mechanically critical value of a frontal wedge is controlled by the pore fluid pressure ratio within the prism (λ) and the effective basal friction (μb’). The solid and broken lines represent the critical state curve for different values of β. B Variation in μb’ when the slope angle α and the basal dip angle β are varied from 1° to 5°, assuming mean subduction wedge conditions

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