eugeniogabriel46 eugeniogabriel46

12-09-2022
Biology

Answered

The geologic record isn't always "perfect." But the imperfections give important clues, too.
Unconformities are inconsistencies in the rock layers. They often show how erosion, uplift,
sea level change and other processes shaped a landscape. There are different kinds of
unconformities. An angular unconformity occurs when older rock layers are tilted, and then
younger rocks form a horizontal layer above them. This indicates that deformation and
erosion took place during a pause in sediment deposition. One angular unconformity is
visible in the Grand Canyon.

Which of the following is the best title for this passage?
A. The Grand Canyon
B. Geology
C. Tilted rocks
D. Unconformities

Answer :

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