Double Arch
Double Arch in the Windows Section in Arches National Park. Note the difference between the wavy shale, siltstone, and sandstone layers of the lower Dewey Bridge Member of the Carmel Formation in relation to the more massive Slick Rock Sandstone Member of the Entrada Sandstone. The Dewey Bridge member overlies the Navajo Sandstone in the park area (Doelling, 2000).
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Last modified: 7/22/2010