What is the purpose of absolute dating
The most popular method of radio dating is radio carbon dating which is possible because of the presence of C-14, an unstable isotope of carbon.
C-14 has a half life of 5730 years which means that only half of the original amount is left in the fossil after 5730 years while half of the remaining amount is left after another 5730 years.
This is a method that does not find the age in years but is an effective technique to compare the ages of two or more artifacts, rocks or even sites.
It implies that relative dating cannot say conclusively about the true age of an artifact.
• 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.
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.
Relative dating makes use of the common sense principle that in a deposition of layers.
Two broad categories of classification methods are relative dating and absolute dating.C in the atmosphere haven’t been constant throughout history (for instance, Noah’s Flood lowered the total amount of available carbon by burying lots of animals and plants).So something that lived (and died) when the proportion of C was less than normal would appear to have died more years ago than it actually did (for example, it might give an age of 3,000 years before the present, rather than its true age of 2,000 years).However, age of deposition does not mean the age of artifacts found in that layer.Artifacts found in a layer can be compared with other items found in layers of similar age and placed in order.
Even many archaeologists don’t think “carbon dating” is completely accurate all the time.