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Fluorine dating: Bones from fossils absorb fluorine from the groundwater.The amount of fluorine absorbed indicates how long the fossil has been buried in the sediments.➤ It determines the age of a rock/object using radiometric techniques.➤ Absolute dating is quantitative.➤ This technique helps determine the exact age of the remains.➤ It is more specific than relative dating.➤ Absolute dating is expensive and time-consuming.➤ It works best for igneous and metamorphic rocks.Stratigraphy: The oldest dating method which studies the successive placement of layers.It is based on the concept that the lowest layer is the oldest and the topmost layer is the youngest.Cross dating: This method compares the age of remains or fossils found in a layer with the ones found in other layers.The comparison helps establish the relative age of these remains.

These remains are subjected to dating techniques in order to predict their ages and trace their history.Learn more about relative dating by reviewing the lesson, What is Relative Dating?Share lessons with your students Upgrade Plan No obligation; cancel anytime.Absolute dating, also called numerical dating, arranges the historical remains in order of their ages.Whereas, relative dating arranges them in the geological order of their formation.The area of intersection of both sets depicts the functions common to both.

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