Alleghanianmountainbuilding
The Alleghanian orogeny was a mountain-building event that occurred in eastern North America. It is part of a larger period of mountain formation known as the Appalachian orogeny. The Alleghanian orogeny took place during the late Paleozoic Era, specifically from the Pennsylvanian to the Permian periods, approximately 325 to 260 million years ago.
This orogeny resulted from the collision of the supercontinent Pangaea. The collision involved the convergence of
The Alleghanian orogeny is responsible for the formation of many of the prominent mountain ranges in eastern
The geological processes involved included intense folding, faulting, and metamorphism of the existing rock layers. Thick