unconformity

[uhn-kuh n-fawr-mi-tee]
See more synonyms for unconformity on Thesaurus.com
noun, plural un·con·form·i·ties.
  1. lack of conformity; incongruity; inconsistency.
  2. 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


Examples from the Web for unconformity

Historical Examples of unconformity


British Dictionary definitions for unconformity

unconformity

noun plural -ties
  1. lack of conformity
  2. the contact surface between younger and older rocks representing a discontinuity in the geological record. Most commonly it represents an erosional surface
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unconformity
n.

c.1600, from un- (1) "not" + conformity. Geological sense is from 1829.

Online Etymology Dictionary, © 2010 Douglas Harper

unconformity in Science

unconformity

[ŭn′kən-fôrmĭ-tē]
  1. 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.