Crevasses usually form as a result of
A) regelation.
B) ablation.
C) deposition.
D) friction, tension, and compression.

Question

Quizplus · Accepted Answer

Crevasses typically form due to the forces of friction, tension, and compression. These forces can be caused by changes in ice flow, such as narrowing or steepening of a glacier, or by the presence of obstacles in the glacier's path, such as rocks or steep terrain. Ablation (the loss of ice due to melting or sublimation) may lead to the widening or deepening of crevasses, but is not the primary cause of their formation. Regelation (the process of ice melting under pressure and then refreezing when the pressure is released) and deposition (the accumulation of snow or ice) are not directly involved in crevasse formation.

Crevasses Usually Form as a Result of