Grand canyon is a national park which is located in the state of Arizona. It spans 277 miles along the Colorado River.
The undisturbed horizontal layers in the Grand Canyon of the sedimentary rocks can be explained using Steno's principle.
- The principle of original horizontality states that all the rock layers are deposited horizontally which can later be deformed.
- The principle of superposition states that when two waves overlap, then the resultant is the sum of both the waves.
- The principle of lateral contiuinity states that initially, the layers of sediments were lateral.
- The principle of original verticality states that layers of sediments are vertically deposited, originally.
The principle of original horizontality explains the continuity seen at the Grand Canyon. Hence, the correct answer is option a.
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