Kōrero: Geology – overview

Geological time scale

Geological time scale

Fossils record the changes of life on earth, and are used to date rocks that were formed over the last 540 million years. This is a simplified version of the internationally-accepted time scale. Ages on the right (in millions of years) are based on radiometric dating.

A much more detailed subdivision of the time scale has been undertaken in New Zealand, and a local version is used for dating rocks.

Te whakamahi i tēnei tūemi

Te Ara - The Encyclopedia of New Zealand

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Te tuhi tohutoro mō tēnei whārangi:

Eileen McSaveney and Simon Nathan, 'Geology – overview - Rocky foundations', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/diagram/8294/geological-time-scale (accessed 21 October 2021)

He kōrero nā Eileen McSaveney and Simon Nathan, i tāngia i te 12 Jun 2006