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Licemer1 [7]
4 years ago
11

Which statements explain reasons why unconformities occur? Check all that apply.

Biology
2 answers:
likoan [24]4 years ago
3 0

Answer:

3. Rocks erode and sediment is deposited.

4. No sediment is deposited over a long time.

Explanation:

An unconfomity is a break in stratigraphic record of a place usually as a result of non-deposition or erosion.

In a sequence of sedimentary rock strata some surfaces called unconformity surfaces gives clues about the depositional history of a particular place. During an unconfomity, there is usually no sediment deposition and when deposition resumes, the underlying rocks and the new ones will not share the same attribute especially by age. Unconformity can also be as a result of erosion of a sequence.

In the case of non- conformity, a sedimentary rock is deposited above an igneous or sedimentary rock. Option 5 is a simple example of an igneous intrusion called a sill. It is not unconformity.

natulia [17]4 years ago
3 0

Answer:

Rocks along a fault break and move.

Rocks erode and sediment is deposited.

Igneous rock forms between sedimentary layers.

Explanation: got it right on the quiz

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