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18-Aug-2020 14:18

These include the uranium-thorium method, the potassium-argon method, and the rubidium-strontium method. Thermoluminescence (pronounced ther-moeloo-mi-NES-ence) dating is very useful for determining the age of pottery.

When a piece of pottery is heated in a laboratory at temperatures more than 930°F (500°C), electrons from quartz and other minerals in the pottery clay emit light.

Relative dating methods are used to determine only if one sample is older or younger than another.

Absolute dating methods are used to determine an actual date in years for the age of an object.

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Stratigraphy: Study of layers of rocks or the objects embedded within those layers.Since certain species of animals existed on Earth at specific times in history, the fossils or remains of such animals embedded within those successive layers of rock also help scientists determine the age of the layers.