Realative dating age of rocks
For purposes of relative dating this principle is used to identify faults and erosional features within the rock record.
Then, by applying the Principle of Cross-Cutting we are able to relatively date those processes.
The first principle is the Principle of Superposition which states that in an undisturbed succession of sedimentary rock, the oldest layers are on the bottom.
Climate chronology uses evidence of a climatic change, such as an ice age, as a benchmark for dating.
states, “Before the 20th century, archaeologists and geologists were largely limited to the use of relative dating techniques.
This follows due to the fact that sedimentary rock is produced from the gradual accumulation of sediment on the surface.
Therefore newer sediment is continually deposited on top of previously deposited or older sediment.
The relative dating methods themselves are generally sound when used with good assumptions.