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

[Paul]

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.