Define absolute dating geology
Absolute dating(also known as radiometric dating) is based by the measurement of the content of specific radioactive isotopes of which the "half time" is known.
Some methods used in relative dating are stratigraphy, biostratigraphy, and cross dating.Relative dating is based on super imposition and fossils.In relative dating, fossils are dated according to the depth at which they were buried.Absolute dating and relative dating are two techniques used in geology to evaluate the age and the period of a fossil or rock. What is Absolute Dating – In geology, absolute dating is a technique that determines the exact numerical age of a historical remaining.Since it evaluates the exact age of the sample, absolute ageing is also called numerical dating.
The four techniques used in absolute dating are radiometric dating, amino acid dating, dendrochronology, and thermoluminescence.