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Researchers suggest Canadian rocks in the Nuvvuagittuq Greenstone Belt (NGB) may be 4.16 billion years old, bolstering claims that it contains remnants of Earth's earliest crust. This dating, based on samarium-neodymium isotope analysis of metagabbroic intrusions, is less than previous controversial estimates but still significantly old. The study highlights the challenges and importance of accurately dating ancient rocks to understand early Earth's geology, emphasizing the need for critical evaluation of dating methods.

Prepared by Olivia Bennett and reviewed by editorial team.