Which outcome occurs when the uplift rate reduces in a landscape containing alluvial fans?

💡 Explanation

Fan entrenchment occurs when decreased uplift lowers sediment supply, because the river incision mechanism cuts down into the existing alluvial fan surfaces, therefore terraces form rather than continued aggradation.

• Which delta formation results from increased sediment deposition in subglacial lakes?
• Which landscape feature develops when saturated soil creeps downslope due to freeze-thaw cycles?
• After magma ascends following substantial eruptions, which volcanic structure readily develops due to effusive activity?
• Which outcome would most likely occur after repeated flood events breach engineered levees along a major river?
• Which consequence results when a transform fault restricts sediment transport?
• Which condition causes increased cave system formation via dissolution?