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No tectonics
Hadean + Archean
Grenville Orogeny (Rodinia Supercontinent Forms)
1 billion years ago
Rodinia Splits
750-550 million years ago
Cambrian
Passive Margin
Taconic Orogeny (Island arcs collide)
Ordovician
Taconic Mountains Erode (Passive Margin)
Silurian
Acadian Orogeny (Protocontinent collides)
Devonian
Alleghanian Orogeny (Gondwana/Africa collides)
Pennsylvanian
Pangea Supercontinent
Permian
Pangea Rifting
Triassic
Pangea Rifts (Atlantic opens)
Jurassic
Passive Margin (Continental shelf forms)
Cretaceous
Passive Margin
Cenozoic