Which geologic consequence results when high discharge fluvial systems deposit sediment at mountain front?

💡 Explanation

When fluvial systems discharge at a break in slope, reduction in transport capacity occurs because the flow spreads, depositing sediment and forming alluvial fans. Therefore broad alluvial fan deposits result, rather than terraces, canyons, or loess deposits which depend on different mechanisms like incision, turbidity currents, or aeolian processes.

• Which consequence results when uplift along a fault displaces an alluvial fan?
• Which mechanism causes crustal thickening when thrust faulting occurs in collisional mountain belts?
• Which substance accumulates when weathering decreases infiltration rates?
• Which process determines the angle of repose of an alluvial fan deposit formed by debris flow?
• Which outcome increases near composite volcanoes due to magma properties?
• Which outcome occurs when magma viscosity increases inside a volcanic dome?