topographic unconformity

topographic unconformity

[¦täp·ə¦graf·ik ‚ən·kən′fȯr·məd·ē]
(geography)
A lack of harmony or conformity between two parts of a landscape or two kinds of topography.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.