Variscan orogeny
（重定向自Variscan mountains）
![Location of the Hercynian-Alleghenian mountain belts in the middle of the Carboniferous period. Present day coastlines are indicated in grey for reference.[1]](/uploads/202502/19/Hercynides_EN.svg5520.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.