New Claim For World's Oldest Rocks Dates Back A Whopping 4.16 Billion YearsA more detailed investigation of the Nuvvuagittuq Greenstone Belt has strengthened Canada’s claim to host rocks that date back to the Hadean Eon. This would make them strong favorites to be the oldest rocks on Earth.Tectonic processes, volcanic activity, and surface erosion constantly recycle the Earth’s crust, so that...
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