4-Billion-Year-Old Stripey Rocks in Canada May Be The Oldest on Earth A belt of swirly, stripey rock in the northeast reaches of Canada looks like it contains some of the oldest minerals ever found on our planet's surface.

4-Billion-Year-Old Stripey Rocks in Canada May Be The Oldest on Earth Researchers have discovered 4-billion-year-old stripey rocks in Canada, which may represent the oldest known geological formations on Earth. These ancient rocks... @cosmicmeta.io #OldRocks

https://u2m.io/qAXjDjT7

A Lewis (me) on the 3 billion year old Lewisian Gneiss in northern Scotland. #geology #oldrocks #geoetc #lewisian #scotland

Lots of old-school rock faces at the Herring tonight. #oldrocks #dhgmf17