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Unconformity Types and Examples


Unconformities are breaks or gaps in the geologic record, as shown by the arrangement of sedimentary (stratigraphic) features in the rock. This gallery shows the basic unconformity types recognized by U.S. geologists plus photos of examples from outcrops. This article gives more details about unconformities.
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Simple diagrams and explanationsDiagram of Unconformity TypesCovered and exhumedAngular Unconformity, Pebble Beach, CaliforniaTilt, tilt, tiltAngular Unconformity, Carlin Canyon, NevadaCloseup of an unconformityAngular Unconformity in Conglomerate
Misnamed but still greatNonconformity, Red Rocks, Colorado

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