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← GeographyWhich mechanism causes linear offshore valleys at transform plate boundaries?
A)Erosion from localized shear stress✓
B)Sediment accumulation from turbidity currents
C)Fault gouge deposition by hydrothermal vents
D)Subsidence via isostatic adjustment
💡 Explanation
When strike-slip motion occurs along transform faults, the repetitive shear stress concentrates mechanical wear, enabling abrasion and rock pulverization, creating linear valleys. Therefore, erosion from shear stress results, as opposed to sediment accumulation, chemical deposition, or isostatic subsidence, requiring alternative driving factors.
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