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Geography

Which process controls fjord sediment composition variation nearest the glacier terminus?

A)Glacial flour settling rates
B)Tidal current sediment sorting
C)Deltaic sedimentary layering
D)Isostatic rebound sediment uplift

💡 Explanation

When glaciers melt, glacial flour (fine sediment) is produced; differential settling based on Stokes' Law occurs because larger particles deposit first, influencing sediment composition nearest to the terminus. Therefore flour settling dominates proximal sediments, rather than current sorting, deltaic processes or isostatic rebound which have lesser effects near terminus.

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