Scientific dating techniques

10 Jun

You can contact our Science Advisors or contact our scientific dating experts for direct advice.On 1 April 2015 the part of English Heritage represented on this website changed its name to Historic England.Using these key or index fossils as markers, Smith could identify a particular layer of rock wherever it was exposed.

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The Major Divisions of Geologic Time are shown here, arranged in chronological order with the oldest division at the bottom, the youngest at the top. Specifically, stratigraphy refers to the application of the Law of Superposition to soil and geological strata containing archaeological materials in order to determine the relative ages of layers.

Many of these links also appear where appropriate below.

James Hutton and William Smith advanced the concept of geologic time and strengthened the belief in an ancient world.

For each dating or chronological method there is a link in the box at right to take you to that section of this page.

There, you will find a brief description of the method, plus links to take you to other webpages with more extensive information.