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unconformity definition

un·con·form·ity (-kən fôr′mə tē)

noun pl. unconformities -·ties

  1. a lack of conformity; inconsistency; incongruity
  2. Geol.
    1. a break in the continuity of rock strata in contact, separating younger from older rocks and usually resulting from erosion of the surface of the older bed before the younger bed was laid down
    2. the surface of contact between such strata

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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