Define absolute dating geology
For educational purposes, we shall start with a method which barely works at all under any circumstances. Chronological Analysis of the Scriptures- Literal interpretation of the scriptures led some people to conclude that the Earth was created approximately 6,000 years old.
All rocks and minerals contain tiny amounts of these radioactive elements.
Buffon's Iron Sphere Experiments- On the basis of iron sphere cooling experiments, Frenchman Georges de Buffon estimated that the Earth would have needed 75,000 years to cool to its present temperature.