Age (geology)

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This article is about Age (geology). For other uses of the term Age , please see Age (disambiguation).

The age is the fundamental chronostratigraphic unit.

Being geochronologic units, ages represent a interval of geologic time. The corresponding chronostratigraphic units represent the body of rocks formed during the age, and are called stages

Ages/Stages are formally defined following the indications of the ICS (International Commission on Stratigraphy). More specifically, ages/stages are defined by the GSSP of their base, their top being defined by the GSSP of the overlying age/stage.

A list of ages/stages may be found at the International Commission on Stratigraphy.^[1]^[2]

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↑ Overview of Global Boundary Stratotype Sections and Points (GSSP's)Status on June 2004, compiled by Jim Ogg (ICS Executive Secretary) (2004)
↑ International Stratigraphic Chart

[1] Overview of Global Boundary Stratotype Sections and Points (GSSP's)Status on June 2004, compiled by Jim Ogg (ICS Executive Secretary) (2004)

[2] International Stratigraphic Chart

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