The Antler Orogeny
Structure of Devonian Coast
The Antler Orogeny is a mountain-building episode in Earth’s history that began in the Late Devonian and lasted until Early Mississippian time. This orogeny pushed oceanic rocks from the west atop the continental rocks to the east, deforming many of the Paleozoic rocks throughout the Great Basin in Nevada and western Utah. Several faults formed during this event, shifting and deforming the Alamo impact crater and associated impact breccia.