No idea about Norway but getting grants and scholarships isn’t hard depending where you go. Some non big name state school should be easy. School I went to have people full rides for like 25 on the ACT (36 max score) which is arguable a middling score but I guess it’s relative to the local population.
Be warned though, there aren’t really many geology jobs without at least a masters or for cool sciences shit a PhD. A bachelor won’t get you terribly far.
Also if you go to a lesser known school for a long while geology enrollment has been extremely low (not counting oil schools obviously) so that can help get funds