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Oldest dated rocks

The oldest dated rocks formed on Earth, as an aggregate of minerals that have not been subsequently broken down by erosion or melted, are more than 4 billion years old, formed during the Hadean Eon of Earth's geological history, and mark the start of the Archean Eon, which is defined to start with the formation of the oldest intact rocks on Earth.

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Oldest rocks by category

DatedGaMetamorphosedSandstoneConglomerate
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EarthAggregateMineralsErosionHadean
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Oldest dated rocks

Nodes80
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Avg. degree1.98
Density0.025
Components1

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years earth rock billion oldest rocks dated ga zircon moon old gneiss age zircons formation found canada ago older earth's

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