Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.
How do we know Earth is 4.5 billion years old?
By dating the rocks in Earths ever-changing crust, as well as the rocks in Earths neighbors, such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
Who Discovered age of Earth?
Clair Cameron Patterson Clair Cameron PattersonKnown forUranium–lead dating, age of the Earth, lead contaminationSpouse(s)Lorna Laurie Patterson ( m. 1944)Children4 (Susan, Claire, Charles, Cameron)AwardsTyler Prize (1995) V. M. Goldschmidt Award (1980) J. Lawrence Smith Medal (1973)11 more rows