Search This Blog

Wednesday 22 January 2020

Earth's oldest asteroid strike linked to 'big thaw'

Scientists have discovered Earth's oldest asteroid strike occurred at Yarrabubba, in outback Western Australia, and coincided with the end of a global deep freeze known as a Snowball Earth. The research used isotopic analysis of minerals to calculate the precise age of the Yarrabubba crater for the first time, putting it at 2.229 billion years old -- making it 200 million years older than the next oldest impact.

from All Top News -- ScienceDaily https://ift.tt/3aJ7NMm

No comments:

Post a Comment