Abstract

In parts of the Grand Canyon a sinuous anticlinal structure in the Muav Limestone trends along the Colorado River and dips away from the river course. If the structure was there before the canyon was created, it appears that parts of the Colorado River channel coincide with the axis of the anticline. A model study based on the concept of finite elements shows that a possible mechanism for the folding of the Muav Limestone is elastic rebound caused by relief from overburden pressure as material was eroded to form the canyon.

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