Which process determines the angle of repose of an alluvial fan deposit formed by debris flow?

💡 Explanation

When debris flows deposit material, the angle of repose is reached because the frictional forces between particles, influenced by their size and shape distributions, balance the force of gravity. Therefore, grain size and friction dictate the slope, as opposed to mineral solubility, oxidation, or capillarity which affect other sediment consolidation properties.

• Which geographic phenomenon is caused when fault creep accumulates along a transform boundary?
• Which outcome is caused by creep along a major fault?
• Which weathering outcome significantly slows blanket bog pedogenesis?
• Which mechanism causes increased flood risk when an alluvial fan experiences rapid urbanization?
• Which outcome is amplified by the increased frequency of dust storms in playas?
• Which outcome is intensified following increased freshwater input during polar glacial melting impacting the Gulf Stream gyre?