Radio dating techniques

14-Jun-2015 08:45

(length = 7 mins, 24 secs) The perpetrator of the Piltdown Man hoax may have been uncovered.

In the mid 1990's, an old tool kit was found in a dusty backroom of the Natural History Museum in London.

In other words, they may no longer be in their primary context.

When the bones of our early ancestors are found in the same geological strata as those of other animals that are known to have lived only during a specific time period in the past, we assume that these ancestors must also have come from that time.

Since these components contain nitrogen, there is a progressive loss of that element.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..

Since these components contain nitrogen, there is a progressive loss of that element.

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..

In the past, relative dating methods often were the only ones available to paleoanthropologists.