Absolute and relative dating techniques
Since the rock formation contains both types of fossils the ago of the rock formation must be in the overlapping date range of 415 to 420 million years.Studying the layers of rock or strata can also be useful. If a layer of rock containing the fossil is higher up in the sequence that another layer, you know that layer must be younger in age. This can often be complicated by the fact that geological forces can cause faulting and tilting of rocks.
Using relative dating the fossil is compared to something for which an age is already known.We recommend that all our users opt for the Flash-version of the chat (currently in use). To become a premium (GOLD) member for life and unlock this feature, all you have to do is buy any amount of tokens one time! There are two main methods determining a fossils age, relative dating and absolute dating.The atoms in some chemical elements have different forms, called isotopes.These isotopes break down at a constant rate over time through radioactive decay.