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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Fault weakening caused by smectite swelling

Fig. 2

Apparatus and typical results of the swelling pressure tests. a Schematic diagram of the test apparatus used in this study. b Typical swelling pressure measurements for the fault zone sample (blue line) and the host rock sample (red line). Note that the fluid pressure was fixed at 0.2 MPa

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