Which process forms predictable graded sediments within alluvial fans?

💡 Explanation

Fluvial sorting concentrates grain sizes because finer sediments will deposit further from the source due to decreased flow velocity and capacity with distance; therefore graded sediments form progressively, rather than relying on uplift rates or mineral concentrations.

• Which process causes increased clay mineral formation when plinthite underlies a waterlogged region?
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• Which risk increases where a large, locked fault experiences episodic tremor and slip (ETS)?
• Which airflow pattern alteration occurs when air ascends rapidly at the Intertropical Convergence Zone?
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