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peterdaly
The principle of superposition is that in a horizontally bedded sequence, the lower strata are the oldest and the top strata are the youngest. The sedimentary rocks were originally laid down horizontally so preserve features that are a consequence of this horizontality so if the strata have been uplifted and perhaps tilted say to vertical, using such clues as original graded bedding ie more coarse grained seds at the bottom of beds and progressively finer grained seds above them within a stratum, this is a clue as to what is up in a vertical or overturned sequence. Also, the fossil content will tell which strata are younger and which older.

The law of superposition and the principle of original horizontality, together with the basic principle of relative dating, help in determining the age of the rock.

What are the law of superposition and the principle of original horizontality?

This law is used in geology to study the age of rock. It is based on the concept that the new rocks remain at the top of the earth's surface while the older ones are found at the bottom.

The principle of original horizontality states that all rocks were initially arranged horizontally. Both principles, along with the basic principle of relative dating, help determine the age of rocks.

Therefore, it can be said that the superposition law and the principle of original horizontality help in determining the age of rocks.

Learn more about Superposition Law and Principle of Original Horizontality here:

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