Geologic Systems, Sequences, and Plays
Permian System |
Permian | |
Play | Associated with... |
Post-Madison through Triassic Clastics | Williston Basin |
Truncated Paleozoic | Sioux Arch |
Permian-Pennsylvanian | Denver Basin |
Permian | Cambridge Arch - Central Ks Uplift |
Pennsylvanian-Permian Structural | Nemaha Uplift |