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Geography

Which phenomenon causes recurring displacement along the San Andreas transform Fault?

A)Mantle convection driven creep
B)Elastic strain accumulation and release
C)Hydrothermal weakening of fault gouge
D)Episodic deep magma intrusion

💡 Explanation

When plates stick then slip, elastic strain accumulates in the crust as tectonic forces act because friction prevents constant sliding, leading to sudden slip during earthquakes. Therefore elastic strain accumulation causes recurring displacement, rather than creep, hydrothermal weakening, or magma intrusion, which have different origins.

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