Which outcome occurs when sediment supply overwhelms a river's capacity around an alluvial fan in a tectonic basin?

💡 Explanation

Channel avulsion occurs to re-establish higher-gradient paths via slope adjustment because increased sediment deposition raises the channel bed. This triggers localized shifts, therefore encouraging steeper gradients, rather than equilibrium or a stable profile.

• Which outcome occurs where persistent, high winds encounter unconsolidated sediments?
• Which mechanism alters surface salinity within subtropical gyres located far from landmasses?
• Which effect increases downslope movement rate during solifluction given saturated active layer conditions?
• Which outcome is primarily caused when differential heating establishes atmospheric cells near the equator?
• Which outcome occurs when cyclical changes alter loess compaction?
• Which risk increases when volcanic ash flows encounter snowpack?