Joints enhance weathering
Category:Science Popularization

Weathering happens along the joints, therefore, rocks with more joints are more easily weathered. The intersection of sets of joints undergoes the strongest weathering.

The rock is cut by several sets of joints into some polyhedral fragments, whose edges and corners are the first to be affected by temperature and water. As time goes by, with the corners gradually wearing away, the rock becomes spheroid, and this phenomenon is called spheroidal weathering.

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