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Honeycomb Weathering

Mechanical or Physical Weathering Gallery


Sandstone at San Francisco's Baker Beach has many closely spaced, small alveoli (cavernous weathering pits) due to the action of salt crystallization.
Small, close-knit tafoni

From stop 32 of the California Subduction Transect

Photo (c) 2005 Andrew Alden, licensed to About.com (fair use policy)
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