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← GeographyWhich outcome results when pore fluid pressure increases along faults?
A)Fault creep acceleration occurs gradually✓
B)Metamorphic rock foliation alignment weakens
C)Geothermal vent temperature decreases rapidly
D)Subduction zone angle shallows steadily
💡 Explanation
Fault creep accelerates on the San Andreas fault because increased pore fluid pressure reduces effective normal stress, lessening frictional resistance, and enabling easier slip. Therefore, fault creep increases; rather than causing foliation changes, temperature drops, or shifting subduction angles directly.
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