Yarrabubba impact structure, Australia, dated to 2224 - 2234 Ma (end of Snowball Earth)

[Oxytropidoceras]

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

Curtin University, January 22, 2020

https://www.sciencedaily.com/releases/2020/01/200122100546.htm

 

the open access paper is:

 

Timmons M. Erickson, Christopher L. Kirkland, Nicholas 

E. Timms, Aaron J. Cavosie, Thomas M. Davison. Precise 

radiometric age establishes Yarrabubba, Western 

Australia, as Earth’s oldest recognised meteorite 

impact structure. Nature Communications, 2020; 11 (1) 

DOI: 10.1038/s41467-019-13985-7

https://www.nature.com/articles/s41467-019-13985-7

 

Yours,

 

Paul H.

[Wrangellian]

Thanks for posting... Another thing to add to my Precambrian timescale.