@ofthalmo1 @billyphysics @regthedude @clupterobert @redhorsevet @scientiapercept @aig not to mention the rest of precambrian geology austin has never heard of like the failed midcontinent and gardar rifts, ttg complexes, all the large impact craters like sudbury, orogenic events like the penokean orogeny, and pre-pangea continents like rodinia.