Carbon 14 dating information

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Four main methods have been used in Willandra archaeology.This well known method was the first technique that became available for accurate dating of old materials.Artefacts and other materials can be dated in relative terms by observing which layer of sediments they are found in.This applies the geological principle that under normal circumstances younger layers of sediment will be deposited on top of older layers.This 'law of superimposition' works in the well-defined layers of the Willandra lunettes, but only dates objects as younger or older than adjacent layers.To determine the year age (absolute age) of an object, a number of chemical and radioactive techniques can be used.Working out how old archaeological remains are is a vital part of archaeology.

Before the advent of absolute dating methods in the twentieth century, nearly all dating was relative.The method also assumes a 'zeroing' event in the life of the material, when it was either last heated or exposed to sunlight.Dating techniques are procedures used by scientists to determine the age of an object or a series of events.The successive layers of rock represent successive intervals of time.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.

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