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← GeographyWhich outcome is associated with cyclical elastic strain accumulation within a fault zone?
A)Episodic increases in seismic activity✓
B)Formation of deep ocean trenches
C)Steady-state of aseismic creep rate
D)Reduced rate of regional metamorphism
💡 Explanation
Episodic seismic activity results from the elastic rebound mechanism after stress crosses rock strength because accumulated strain is suddenly released upon rupture, therefore triggering earthquake swarms, rather than ductile deformation or suppressed seismic events.
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