Piles of talus found at the base of cliffs in high alpine areas are likely the result of:
A) chemical weathering.
B) pressure-relief fracturing.
C) abrasion.
D) frost wedging.

Question

Quizplus · Accepted Answer

Frost wedging is the process where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart. This is a common process in high alpine areas where temperatures fluctuate around the freezing point, leading to the accumulation of talus at the base of cliffs.

Piles of Talus Found at the Base of Cliffs in High