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Radiometric dating relies on the fact that some elements in the Earth’s atmosphere and rocks exist at different isotopes, some of these isotopes are unstable and upon breaking down emit radiation to become a stable form.

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There are no temporal limits to relative dating, for the methods are equally applicable to the dating, say, of Proterozoic surfaces as of those of Pleistocene age.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.Application of scientific methods, also called absolute dating, started to be used in the 1980s and since then has increased more and more its significance, as judged by the large number of papers published in the last two decades on this subject (Rowe Absolute and relative dating methods have been used to establish tentative chronologies for rock art.Relative dating refers to non-chronometric methodologies that produce seriation based on stylistic comparison and stratigraphic assumptions.Carbon for example which exists as Carbon 14 decays to Nitrogen 14 every 5 730 years so it is appropriate to date fossils up to 40 000 years.

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