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Geography

Which outcome follows high-angle subduction overriding denser lithosphere?

A)Increased crustal deformation behind trench
B)Reduced mantle wedge serpentinization rate
C)Decreased volcanic arc magma output
D)Elevated slab rollback tectonic velocity

💡 Explanation

Increased crustal deformation occurs, because high-angle subduction maximizes compressional forces on the upper plate, causing greater buckling and faulting through horizontal shortening, rather than arc volcanism or slab rollback which characterize different subduction geometries.

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