Absolute vs relative dating fossils
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.
Our planet inherits a large number of artifacts and monuments bestowed upon us by older historic civilizations.
However, not all fossils or remains contain such elements.
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.
The area of intersection of both sets depicts the functions common to both.
Take a look at the diagram to understand their common functions.