#geologictimescales — Public Fediverse posts

Series (stratigraphy) (Geology terminology ⛰️)

Series are subdivisions of rock layers based on the age of the rock and formally defined by international conventions of the geological timescale. A series is therefore a sequence of strata defining a chronostratigraphic unit. Series are subdivisions of systems and are themselves divided into sta...

https://en.wikipedia.org/wiki/Series_(stratigraphy)

#Series #Geochronology #GeologicalUnits #GeologicalEpochs #Chronostratigraphy #GeologicTimeScales

Eonothem (Geology terminology ⛰️)

In stratigraphy and geology, an eonothem is the totality of rock strata laid down in the stratigraphic record deposited during a certain eon of the continuous geologic timescale. The eonothem is not to be confused with the eon itself, which is a corresponding division of geologic time spanning a specific number of years, ...

https://en.wikipedia.org/wiki/Eonothem

#Eonothem #Geochronology #GeologicalEons #GeologicalUnits #Chronostratigraphy #GeologicTimeScales

Series (stratigraphy) (Geology terminology ⛰️)

Series are subdivisions of rock layers based on the age of the rock and formally defined by international conventions of the geological timescale. A series is therefore a sequence of strata defining a chronostratigraphic unit. Series are subdivisions of systems and are themselves divided into sta...

https://en.wikipedia.org/wiki/Series_(stratigraphy)

#Series #Geochronology #GeologicalUnits #GeologicalEpochs #Chronostratigraphy #GeologicTimeScales