Disadvantages of relative dating in geology
In other words, they may no longer be in their primary context.
Since these components contain nitrogen, there is a progressive loss of that element.The skull and jaw clearly were not from the same time period.The jaw was likely to have come from a modern young adult orangutan.At the same time, percolating ground water deposits trace amounts of fluorine and other elements, such as uranium, into the bone.As a result, the amount of fluorine Fluorine analysis can be used only as a relative dating method because the rate of decay and the amount of dissolved minerals in the ground water varies from site to site.However, the assumption of contemporaneity may not always be correct.
This is due to the fact that one or both of the objects may have been moved or redeposited into a different location.
It had been cleverly carved to fit the skull and stained to look ancient.
In addition, the associated bones from extinct animals had much older fluorine and nitrogen ratios than either the jaw or the human skull.
For instance, if we find a fossil bone below the strata 3 rock level shown above, we assume that the animal most likely lived at a time before that layer was formed.
However, we must be careful to note whether or not the fossil comes from the mixed strata zone of the filled in hole..
Unfortunately, by 195 Piltdown Man Hoax--an explanation of one of the greatest frauds in the history of science This link takes you to an audio file at an external website.