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← GeographyWhich outcome occurs when rapid sediment deposition exceeds capacity on a submarine canyon fan?
A)Formation of a turbidity current✓
B)Localized increase in seawater salinity
C)Increased biogenic silica sedimentation
D)Reduction in oceanic crust thickness
💡 Explanation
A turbidity current forms because overloading causes a loss of sediment shear strength triggering gravitational collapse, which initiates downslope flow via density differences, rather than increased silica sedimentation that relies on biological processes.
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