unconformity

Un`con*form"i*ty, n. 1. Want of conformity; incongruity; inconsistency. South. 2. (Geol.) Defn: Want of parallelism between strata in contact. Note: With some authors unconformity is equivalent to unconformability; but it is often used more broadly, for example, to include the case when the parallelism of strata once conformable has been disturbed by faulting and the like.

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