Which mechanism creates terraces interrupting slope profiles within cirques?

💡 Explanation

Frost heave within a cirque results in terraced profiles because differential expansion and contraction of sediment sorts coarser materials to the surface. Therefore, stepped, terraced surfaces result from frost sorting, rather than isostatic readjustment causing regional uplift.

• Which mechanism reduces surface salinity in high-latitude oceans when warming temperatures accelerate glacial meltwater outflow?
• Which outcome rapidly occurs when the hydraulic load on epikarst diminishes?
• Which outcome follows high-angle subduction overriding denser lithosphere?
• Which outcome occurs when effusive lava flows spread?
• Which erosional process primarily drives the formation of a cirque in mountainous regions?
• Which outcome follows persistent subduction at oceanic trenches?