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Unconformity

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Unconformities are surfaces that separate two different sequences of sedimentary rocks with different age or sedimentary rocks from igneous or metamorphic rocks and that mark a period of erosion or non-deposition. An unconformity represents a break in the sedimentary record, where there is no record of a period of geological time. In geology, the missing time interval is called a hiatus

References

        

it_IT Italiano
Detrital and Authigenic Minerals
Textures
Sedimentary Structures
Fossils
Sedimentary Rocks

 

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