2 what is the difference between relative and absolute dating
An absolute age is one determined usually by mass-spectrometry where an isotope is measured and then an age can be calculated (a very very basic explanation).So in the end you can say this fossil is 50 thousand years old (always with an associated uncertainty).It is clear then that absolute dating is based upon physical and chemical properties of artifacts that provide a clue regarding the true age.This is possible because properties of rock formations are closely associated with the age of the artifacts found trapped within them.Absolute dating, on the other hand is capable of telling the exact age of an item using carbon dating and many other techniques that were not there in earlier times.
Upper most layers are considered the youngest while the lowermost deposition is considered as oldest.• Relative dating does not tell the exact age, it can only compare items as younger and older.• Absolute dating techniques can tell the exact age of an artifact by employing various techniques, the most popular being C-14 dating.We can absolute date materials but it will always have an uncertainty range, we can never know the age with infinite precision.Relative dating is like looking at a multi-layered cake.
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This type of dating employs many dating techniques like atomic clocks, carbon dating, annual cycle methods, and trapped electron method.