Tuesday, September 4, 2012

Geology of the San Rafael Swell



THE SAN RAFAEL SWELL
The San Rafael Swell, with roughly 1,800 square miles of public land, is one of the Colorado Plateau’s classic Laramide-age uplifts. It is a broad, elongate, structural dome trending mostly northeast. Originally horizontal, the rock layers comprising this structure were compressed during the Laramide Orogeny into a convex, upward-arching anticline measuring about 75 miles long and 30 miles wide.





Written In Stone...seen through my lens

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