Two main different techniques used in fossil dating are:
- Relative dating- determining the age of fossils by comparing it with another fossil whose age is known.
- Absolute dating- the use of radiometric dating methods to determine the precise age of a fossil or a rock.
Advantages of relative dating
- it is cheap
- it is less time consuming
- it is applicable on a wide range of rocks
Disadvantages of relative dating
- it does not give age in years
- it does not consider when events occurred
- it does not give precise results
Advantages of absolute dating
- it provides exact dates for rocks
- it tell us the age of fossils in years
Disadvantages of absolute dating
- it is restricted to certain materials
- materials used are only those that undergo radioactivity
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