Folds and thrust faults in the rocks of the Appalachian region formed in late Paleozoic time when Africa collided with North America.
(the Appalachian region; formed; T:in late Paleozoic time) (Africa; collided; with North America; T:late Paleozoic time)
the Appalachian region Africa
formed collided
T:in late Paleozoic time
with North America T:late Paleozoic time