Earth's oldest known asteroid crater finally gets an exact age

Earth's oldest known asteroid crater finally gets an exact age

Scientists have confirmed the age of Earth's oldest known impact crater, revealing a 3-billion-year-old asteroid strike in Western Australia.

Earth's oldest crater really is more than 3 billion years old

In the Pilbara of Western Australia, some of Earth’s oldest rocks lie beneath the sky, as they have for billions of years. They are dark, weathered volcanic rocks, close to 3.5 billion years old, cut by veins and stewed by deep time. Their survival is remarkable. Most rocks this old have moved back into Earth’s […] The post Earth’s oldest crater really is more than 3 billion years old appeared first on Knowridge Science Report.