Final answer:
The Alleghenian orogeny, which played a significant role in the assembly of the supercontinent Pangaea, was a result of the collision between North America and Gondwana around 250 million years ago.
Step-by-step explanation:
The Late Carboniferous Alleghenian orogeny resulted from the collision of North America with Gondwana. This orogeny is part of the assembly of the supercontinent Pangaea, which formed around 250 million years ago (Ma). The Alleghenian orogeny is responsible for much of the faulting and folding of rocks throughout the Valley and Ridge Province and the Highlands. Although the evidence of this orogeny has been eroded in places like New Jersey, its effects are significant in the formation of the Appalachian Mountains. The collision contributed to the growth of the continental mass, resulting in the bending of the lithosphere, akin to the concepts of isostasy and the creation of features such as foreland basins and potentially shallow inland seas during such colossal geological events.