Relative dating archaeology definition Salas chat com cam gratis
Relative dating does not provide actual numerical dates for the rocks.
But this method is also useful in many other disciplines.
As an example Pinnacle Point's caves, in the southern coast of South Africa, provided evidence that marine resources (shellfish) have been regularly exploited by humans as of 170,000 years ago.
On the other hand, remains as recent as a hundred years old can also be the target of archaeological dating methods.
Throughout the history of life, different organisms have appeared, flourished and become extinct.
Many of these organisms have left their remains as fossils in sedimentary rocks.
Students begin by observing a photograph and a diagram of rock layers near Whanganui, watch an animation about how the layers were formed, then use an interactive labelling diagram to work out the order in which the rocks were created.