Evidence for Hadean mafic intrusions in the Nuvvuagittuq Greenstone Belt, Canada
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Many questions remain regarding Earth's earliest crust owing to the rarity of Hadean (>4.03 billion-year-old) rocks and minerals. The Nuvvuagittuq Greenstone Belt (NGB) in Canada may be the only known remnant of Hadean crust, although its age is debated, rang... ...
