Jeff Tepper: More Geochemistry
3:11
APES - 9.2 - Reducing Ozone Depletion
34:44
He Leaked Google Info About How We’re Dealing With Alien Intelligence!
56:33
Supercontinents and the Pacific Northwest
30:11
Jeff Tepper: Farallon Plate Diving
56:47
How did the Rocky Mountains Form?
39:00
Jeff Tepper: Breakoff Geochemistry
34:18
Jeff Tepper: Early Days Geochemistry
13:16