Variscan orogeny
Collision of tectonic plates resulting in the creation of mountains
Variscan orogeny
The Variscan orogeny or Hercynian orogeny was a geologic mountain-building event caused by Late Paleozoic continental collision between Euramerica (Laurussia) and Gondwana to form the supercontinent of Pangaea. It remains visible today as a series of isolated massifs, including the Ardennes, Bohemian Massif, Vosges-Black Forest, Odenwald, Armorican Massif, Cornubian Massif, Massif Central, Iberian System and Gennargentu Massif. These are interspersed with Mesozoic and Cenozoic sedimentary basins. The chain also crops out in southern Ireland and was later incorporated into the Alpine orogeny (external crystalline massifs) and Pyrenean orogeny. These ancient massifs form the pre-Permian basement of western and Central Europe, part of a larger mountain system stretching from the Ural Mountains in Russia to the Appalachian Mountains in North America. The chain originated from the convergence and collision of three continental masses: the microcontinent Armorica and the supercontinents Protogondwana...
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