Radiocarbon dating is appropriate for measuring the age

Posted by / 06-May-2017 05:07

Radiocarbon dating is appropriate for measuring the age

The study of strata is called stratigraphy, and using a few basic principles, it is possible to work out the relative ages of rocks.

Just as when they were deposited, the strata are mostly horizontal (principle of original horizontality).

Second, it is possible to determine the numerical age for fossils or earth materials.

Numerical ages estimate the date of a geological event and can sometimes reveal quite precisely when a fossil species existed in time.

Younger layers are deposited on top of older layers (principle of superposition).

Third, magnetism in rocks can be used to estimate the age of a fossil site.

This method uses the orientation of the Earth's magnetic field, which has changed through time, to determine ages for fossils and rocks.

Layers that cut across other layers are younger than the layers they cut through (principle of cross-cutting relationships).

The principle of superposition builds on the principle of original horizontality.

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In addition to being tilted horizontally, the layers have been faulted (dashed lines on figure).