Eocene Tectonics and Paleogeography (50 Ma).

Tertiary Eocene (50 Ma)
  • Intermontane and Baja BC blocks continue northward translation along with north-migrating Kula-Farallon plate boundary; many terranes approach their present latitude with respect to North America
  • Olympic terrane accreted
  • Extensive fore arc sedimentation along most of Cordilleran margin
  • Rocky Mountain foreland uplift, deformation, and shallow-subduction-related magmatism; interior sedimentation mostly restricted to Rocky Mountain foreland basins
  • Eocene Tectonic Map and Paleogeographic Map