Unconformity meaning

ŭn'kən-fôr'mĭ-tē
Lack of conformity; nonconformity.
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A surface between successive strata representing a missing interval in the geologic record of time, and produced either by an interruption in deposition or by the erosion of depositionally continuous strata followed by renewed deposition.
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A lack of conformity; inconsistency; incongruity.
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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.
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(nonstandard) A lack of conformity.
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(geology) A gap in time in rock strata, where erosion occurs while deposition slows or stops.
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Origin of unconformity

Unconformity Sentence Examples

  • A great unconformity separates the Table Mountain and Ecca series.

  • Its distribution is very different from that of the Upper Cretaceous, and there is a great and widespread unconformity between them.

  • This unconformity is generally found about the same horizon in the continental Culm areas, and it occurs again in the western part of the English Culm.

  • From the Permian to the Lias the sequence in the central Himalaya shows no sign of a break, nor has any unconformity been proved between the Liassic beds and the overlying Spiti shales, which contain fossils of Middle and Upper Jurassic age.

  • Upon the folded slates and schists which constitute these inliers the Devonian rests with marked unconformity; but north of the ridge of Condroz Ordovician and Silurian beds make their appearance.

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Words near unconformity in the Dictionary