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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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ECHOES IN STONE: WASHINGTON GEOLOGY

Washington StateTwo hundred million years ago, what we now call Washington wasn’t Washington at all. It was two drifting islands — fragments of a wandering continent slowly inching their way west across the ancient ocean. They were vagabonds, carried on tectonic currents until, at last, they collided with the North American continent and made themselves at home.That restless motion has

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