UNCONFORMITY

Unconformity

An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata of different ages, indicating that sediment deposition was not continuous. In general, the older layer was exposed to erosion for an interval of time before deposition of the younger, but the term is used to describe any break in the sedimentary geologic record. The significance of angular unconformity was shown by James Hutton, who found examples of Hutton's Unconformity at Jedburgh in 1787 and at Siccar Point in 1788.

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unconformity

Noun

  1. a lack of conformity
  2. a gap in time in rock strata, where erosion occurs while deposition slows or stops


The above text is a snippet from Wiktionary: unconformity
and as such is available under the Creative Commons Attribution/Share-Alike License.

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