Geology relative dating activity

Radiometric dating: This technique solely depends on the traces of radioactive isotopes found in fossils.The rate of decay of these elements helps determine their age, and in turn the age of the 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.Fossils are important for working out the relative ages of sedimentary rocks.

Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence.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.Thermoluminescence: It determines the period during which certain object was last subjected to heat.It is based on the concept that heated objects absorb light, and emit electrons. A Venn diagram depicts both dating methods as two individual sets.

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