Define absolute dating techniques

Amino acid dating: Physical structure of living beings depends on the protein content in their bodies.The changes in this content help determine the relative age of these fossils.Our planet inherits a large number of artifacts and monuments bestowed upon us by older historic civilizations.These remains are subjected to dating techniques in order to predict their ages and trace their history.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.Relative techniques are of great help in such types of sediments.➤ It determines if an object/event is younger or older than another object/event from history.➤ Relative dating is qualitative.➤ This technique helps determine the relative age of the remains.➤ It is less specific than absolute dating.➤ Relative dating is comparatively less expensive and time-efficient.➤ It works best for sedimentary rocks having layered arrangement of sediments.The following are the major methods of relative dating.

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.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.Biostratigraphy: An extended version of stratigraphy where the faunal deposits are used to establish dating.Faunal deposits include remains and fossils of dead animals.

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