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For a non-exhaustive list of relative dating methods and relative dating applications used in geology, paleontology or archaeology, see the following: Same as geologists or paleontologists, archaeologists are also brought to determine the age of ancient materials, but in their case, the areas of their studies are restricted to the history of both ancient and recent humans.Thus, to be considered as archaeological, the remains, objects or artifacts to be dated must be related to human activity.
This matching process is called correlation, which has been an important process in constructing geological timescales.
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.
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.
The activity offers literacy opportunities as well as practice using the science capability 'Interpret representations'.