Two broad categories of classification methods are relative dating and absolute dating.Though using similar methods, these two techniques differ in certain ways that will be discussed in this article.Artifacts found in a layer can be compared with other items found in layers of similar age and placed in order.However, archeologists still require further information to find out the items that are oldest and those that are youngest in the order.There are many methods employed by these scientists, interested in the old, to get to know the age of items.It is possible to tell the number of years ago a particular rock or archeological site had been formed.
Radiometric dating, based on known rates of decay of radioactive isotopes in objects, allows a specific age of an object to be determined to some degree of accuracy.
Absolute dispersion usually refers to the standard deviation, a measure of variation from the mean, the units of st.
Dating is a technique used in archeology to ascertain the age of artifacts, fossils and other items considered to be valuable by archeologists.
As the name implies, relative dating can tell which of the two artifacts is older.
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.