blended unconformity

blended unconformity

[¦blen·dəd ‚ən·kən′fȯr·məd·ē]
(geology)
An unconformity that is not sharp because the original erosion surface was covered by a thick residual soil that graded downward into the underlying rock.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.