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Earth’s oldest rocks date back 4.16 billion years
Gray rocks uncovered in northern Nunavik, Quebec, Canada may be the ultimate primordial find. The stones date back 4.16 billion years to the Hadean era and are the oldest known rocks on the planet. They are described in a study published June 26 in the journal Science .
In 2008, researchers reported that these rocks dated back 4.3 billion years 2, a claim that other scientists contested. Work ...
If the new age of these Canadian rocks is solid, they would be the first and only ones known to have survived Earth’s earliest, tumultuous time.
Scientists employed two established dating techniques, which measure the decay of radioactive elements, to arrive at the refined age. The discovery significantly contributes to understanding Earth's ...
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