Tag Archives: Taconic Orogeny

This satellite image shows the ancient, folded, and eroded remnants of the Appalachian Mountains, depicted as brown bands, in the northeastern United States. New York City is visible just above the center right of the image.
c. 480 Million BCE: The Geological History of the Appalachian Mountains

Examines the formation and evolution of the Appalachian Mountains, tracing their origins to multiple plate collisions starting around 480 million years ago and discussing their transformation from towering peaks to the more subdued landscapes seen [...]