Argon argon radioactive dating method

A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.However, by itself a fossil has little meaning unless it is placed within some context.

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Younger layers are deposited on top of older layers (principle of superposition).

However, the age of each fossil primate needs to be determined so that fossils of the same age found in different parts of the world and fossils of different ages can be compared.

There are three general approaches that allow scientists to date geological materials and answer the question: "How old is this fossil?

Layers that cut across other layers are younger than the layers they cut through (principle of cross-cutting relationships).

The principle of superposition builds on the principle of original horizontality.

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