Subduction of the ________ Plate beneath the North American Plate at approximately 60 million years ago resulted in the ________ Orogeny that created the Rocky Mountains.

Question

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The Pacific Plate subducted beneath the North American Plate at a later time, resulting in the Cascade Volcanoes. The South American Plate and African Plate were not involved in the formation of the Rocky Mountains. The Taconic Orogeny occurred much earlier in Earth's history and formed the Appalachian Mountains. The Nevadan Orogeny occurred in the Late Jurassic and Early Cretaceous and resulted in the formation of the Sierra Nevada Mountains. The Alleghanian Orogeny also formed the Appalachian Mountains but occurred much earlier in Earth's history. The Laramide Orogeny, caused by the subduction of the Farallon Plate beneath the North American Plate around 60 million years ago, is responsible for the formation of the Rocky Mountains.

Subduction of the ________ Plate Beneath the North American Plate