why rocks develop cracks due to change in temperature
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A fracture will sometimes form a deep fissure or crevice in the rock. Fractures are commonly caused by stress exceeding the rock strength, causing the rock to lose cohesion along its weakest plane. Fractures can provide permeability for fluid movement, such as water or hydrocarbons.
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When the temperature drops below the freezing point of water (0 degrees Celsius), water in cracks turns to ice. Water expands as it freezes, pushing apart the walls of the crack. Moving water and air (wind) can carry sand and other particles.
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