Meteorite bombardment prone to have created the Earth’s oldest rocks

Scientists have discovered that four.02-billion-year-old silica-rich felsic rocks from the Acasta River, Canada — the oldest rock formation identified on Earth — most likely shaped at excessive temperatures and at a surprisingly shallow depth of the planet’s nascent crust. The excessive temperatures wanted to soften the shallow crust had been seemingly brought on by a meteorite bombardment round half a billion years after the planet shaped.
Geology News — ScienceDaily