Answer :
The Virginian Alleghenian Orogeny's orogenic event produced the geologic structure of the Mass Newton Synclinorium.
One of the geologic structure-forming episodes that created the Appalachian Mountains and Allegheny Mountains was the Alleghenian orogeny, also known as the Appalachian orogeny. H.P. Woodward first suggested the name and spelling Alleghany orogeny in 1957.
In the late Paleozoic period, the central and southern Appalachian continental margin of North America collided with that of North Africa, causing the Alleghenian orogeny.
The Alleghenian deformation may be observed in the north, stretching northeast to Newfoundland. Later erosion weakened the mountain range and dispersed silt to the east and west.
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