This, of course, is so that it can be properly catalogued, and, if valid, can be related to or associated with other objects from the same era. Fossils and artifacts don't come with labels attached that clearly state their age.Therefore, scientists need to make use of proper techniques to adequately specify what the age of a fossil or artifact is.Radioactive dating is taking an element from a sample with a known rate of decay and invert the.Compare and contrast between relative and radioactive dating ? What is the difference between radioactive dating and relative dating?and will have appeared in the time period between the two other fossils," or.In palaeontology and archaeology, it becomes necessary to determine the age of an artifact or fossil when it is uncovered.According to Lutgens and Tarbuck, Relative dating is the process in putting events in their proper sequence.Relative dating is based on assumption, not able to give an accurate date but an estimated time period where the rock originated from.
What "decay" means is that the atoms in the object or body become unstable, and, .
A Danish scientist, Nicolaus Steno is accredited for the Law of Superposition.
This law basically tells us that each layer of sedimentary rock is younger than the one below it which is depicted in figure 8.3 in the text.
There are different types of radiation: specifically, gamma, alpha and beta radiation. This process of radioactive decay eventually leads to the atoms becoming a different element and achieving stability.
For example, in decomposing organic bodies - such as an animal carcass - carbon-14, an isotope of carbon, is present.