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Triassic Tectonics and Paleogeography (240 Ma).

Early to Middle Triassic (240 Ma)
  • McCloud arc fragmented and accreted to North America resulting in Sonoman orogeny
  • Caborca terrane moved SE along truncated continental margin
  • Subsequent Cordilleran arc was continental to south and marine to north
  • TriassicTectonic Map and Paleogeographic Map