An unconformity is a time gap or break in stratigraphic record of sedimentary rock layers. It is usually depicted by a period of non-deposition or erosion.
There are different types of unconformity:
>Disconformity
>Non-conformity
>Para-conformity
>Angular unconformity
Non-conformity is a type of unconformity marked by different rock types. The boundary between such rock types is an unconformity surface. For example, the boundary between an igneous rock that caps a sedimentary sequence is an unconformity.
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