Carbon dating basics Online sex text chat site free
Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods.
This uses radioactive minerals that occur in rocks and fossils almost like a geological clock.
These isotopes break down at a constant rate over time through radioactive decay.The majority of the time fossils are dated using relative dating techniques.Using relative dating the fossil is compared to something for which an age is already known.Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
Rather ironic that the fall out from nuclear weapons testing would be used in conservation and climate studies, don’t you think?