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← GeographyWhich mechanism initiates sediment terrace formation upon isostatic rebound near a fjord?
A)Differential weathering of lithologies
B)Deposition during stillstands pausing rebound✓
C)Seismic shaking-induced slope failures
D)Cryostatic pressures fracturing bedrock
💡 Explanation
When isostatic rebound lifts land near a fjord, sediment deposition pauses at relative sea level during stillstands because the rate of uplift temporarily matches rate of sea level rise. Therefore terraces form during these pauses, rather than weathering, shaking, or cryostatic fracturing each requiring alternate dominant factors.
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