Definition of relative dating of fossils

This technique has posed a different problem for creationists, as this dating method does not make use directly of accelerated decay.

The concept is considered by uniformitarian geologists to be a major breakthrough in scientific reasoning by establishing a rational basis for relative time measurements.Visible light and dark rings can be found in such cores that are then analyzed to determine the age of the ice.These layers are presumed to be the result of annual fluctuations in climate, and using this method, uniformitarians purport to document ages of over 100,000 years.William Smith's collecting and cataloging fossil shells from rocks led to the discovery that certain layers contained fossils unlike those in other layers (see: fossil sorting).Using these key or index fossils as markers, geologists began to identify a particular layer of rock wherever it was exposed.

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