Seeing Sea Stacks – By Jerry Gorsline


Sea Stacks located along Olympic coast and western reaches of the Strait of Juan
de Fuca are remnants of headlands that remain after erosion of cliffs by wave action. Erosion of headlands creates caves, and then arches that eventually collapse to form stand-alone large or small sea stacks that lie close to the shore, and
offshore by as much as three miles. Flat-topped rocks standing at an approximate
elevation of 100 feet represent the horizontal surface of an elevated wave-cut
platform, raised by vertical movement owing to post-glacial rebound and uplift
from movement on the Cascadia subduction zone.

Thoughts by Jerry Gorsline. Photo by Olympic National Park Website.

 

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