Mechanical/Physical Weathering Flashcards by libby thornton | Brainscape

Q

What does this weathering depend on?

A

nature of the climate

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Q

When is freeze thaw action common?

A

when temperatures fluctuate above and below freezing

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Q

What is freeze thaw action?

A

water enters cracks in rocks
water freezes when temps go below 0 degrees
when it freezes, water expands by 10%
ice occupies more space exerting pressure
crack wides and rocks break off

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