
Scientists say they have identified Earth’s oldest rocks. It could reveal an unknown chapter in our planet’s history
By Katie Hunt, CNN (CNN) — A rocky outcrop in a remote corner of northern Quebec appears serene in its eerie isolation on the eastern shore of Canada’s Hudson Bay. But over the past two decades, this exposed remnant of ancient ocean floor, known as the Nuvvuagittuq Greenstone Belt, has been a heated scientific battleground
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