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← GeographyWhich process significantly influences the rate of sediment accumulation in a fjord with actively calving glaciers?
A)Eolian transport rate from deserts
B)Salinity gradient driven flocculation✓
C)Tidal amplification induced scouring
D)Biogenic silica deposition rates
💡 Explanation
When freshwater runoff meets saline fjord water, salinity gradient induces flocculation because dissolved organic matter binds to particles. This process accelerates settling, dramatically increasing sediment accumulation. Therefore, salinity gradient driven flocculation determines deposition rates, as opposed to other sediment sources or tidal effects.
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