Variscan orogeny
(重定向自Hercynian)
![Location of the Hercynian-Alleghenian mountain belts in the middle of the Carboniferous period. Present day coastlines are indicated in grey for reference.[1]](/Images/godic/202501/17/Hercynides_EN.svg4553.png")

The Variscan or Hercynian orogeny is a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea.
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