This photograph shows rock strata in the Big Horn Mountains of Wyoming. It also shows the site of a unconformity in the rock strata right in the center of the view. Review the statements. All BUT ONE correctly describes why this could be considered an unconformity. A) An older layer is exposed to erosion
B) An igneous intrusions cuts through the rock layers
C) There is a break in the sedimentary geological record
D) Eroded layers are buried by deposition of younger sediments