Cheyenne belt
The Cheyenne Belt is the tectonic suture zone between the Archean-age Wyoming craton to the north and the Paleoproterozoic-age Yavapai province to the south. It runs through the southeastern quadrant of the state of Wyoming, United States. It was formed during the Paleoproterozoic Medicine Bow orogeny between 1.78 and 1.74 billion years ago when island arcs collided with the Wyoming craton.[1] This is an example of a convergent boundary in tectonics.
The exposed geology consists of a series of northeast-striking, steeply-dipping shear zones.[1]
References
- ^ a b Ward, Dustin. "The Cheyenne Belt". Tectonics of the Western U.S. University of Colorado. Retrieved 5 January 2011.
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