Definition of weathering: Breakdown of rock to form sediment The Rock Cycle Click here to review the rock cycle A. Physical or mechanical weathering Frost wedging - water expands when it freezes Talus slope, Lost River, West Virginia Shale chips, West Virginia Exfoliation or unloading - rock breaks off into leaves or sheets along joints which parallel the ground surface;
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the rock cycle A. Physical or mechanical
Talus slope, Lost River, West Virginia Shale chips
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