unconformity

noun un·con·for·mi·ty \ ˌən-kən-ˈfȯr-mə-tē \

Definition of unconformity

1 a : lack of continuity in deposition between rock strata in contact corresponding to a period of nondeposition, weathering, or erosion
b : the surface of contact between unconformable strata
2 archaic : lack of conformity

First Known Use of unconformity

circa 1600


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