unconformity

[ uhn-kuh n-fawr-mi-tee ]
/ ˌʌn kənˈfɔr mɪ ti /

noun, plural un·con·form·i·ties.

lack of conformity; incongruity; inconsistency.
Geology.
  1. a discontinuity in rock sequence indicating interruption of sedimentation, commonly accompanied by erosion of rocks below the break.
  2. the interface between such strata.

Origin of unconformity

First recorded in 1590–1600; un-1 + conformity

Example sentences from the Web for unconformity

British Dictionary definitions for unconformity

unconformity
/ (ˌʌnkənˈfɔːmɪtɪ) /

noun plural -ties

lack of conformity
the contact surface between younger and older rocks representing a discontinuity in the geological record. Most commonly it represents an erosional surface

Scientific definitions for unconformity

unconformity
[ ŭn′kən-fôrmĭ-tē ]

A surface between successive strata representing a missing interval in the geologic record of time, produced either by an interruption in deposition or by the erosion of depositionally continuous strata followed by renewed deposition. An unconformity is a type of discontinuity.