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The oldest rocks on Earth are 4.3 billion years old

By Hanika Rizo, Associate Professor, Department of Earth Sciences, Carleton University
Jonathan O’Neil, Professor, Earth and Environmental Sciences, L’Université d’Ottawa/University of Ottawa

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the oldest terrestrial materials dated by scientists.

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~	The oldest rocks on Earth are more than four billion years old

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