Answer: Unconformity is the procedure between two rocks having a contact. It is usually observed that upper unit of rock is younger in nature compared to the lower unit of rock.
Explanation: There are different types of unconformities such as:
- Disconformities- it is a uncoformity which has a parallel nature along with the rocks in the sedimentary form during the phase of erosion
- Non-conformities - it is a unconformity that creates the separation between the sedimentary rocks and other rocks like igneous rocks. They usually display the erosion that has occurred long time back.
- Angular unconformities-it is also a type of separation that is present between the younger rocks and the older rocks units.
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Explanation:
Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.
