Honeycomb Weathering

May 04, 2006

Honey_comb_weathering,_clayton

Provided by: Kelsay Davis
Summary authors & editors: Kelsay Davis

Honeycomb weathering often occurs in sandstones along the coast of Puget Sound, Washington, and there are particularly nice examples at Clayton Beach, near Bellingham, as shown on the above photo taken February 10, 2006. The holes in this rock are on the order of a foot or so (30 cm) in diameter. This weathering occurs from the evaporation of water in brine-soaked rocks at high tide level. Sodium left within the sandstone pores gradually accumulates, displacing clasts. The honeycomb weathering at Clayton Beach is visible in sandstones of the Chuckanut Formation, a package of Eocene terrestrial sedimentary rocks.

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