Britannica AI Icon

Quick Summary

The Hercynian orogeny, also known as the Variscan orogeny, was a mountain-building event that occurred in Europe during the Devonian, Carboniferous, and early Permian periods, roughly 419 to 252 million years ago. This orogeny resulted from the collision of continental plates, specifically Africa with a North American-North European continent.12

The Hercynian belt stretches across parts of Portugal, Spain, Ireland, England, France, Germany, and the Czech Republic. Evidence of this event includes folded and faulted rock strata, metamorphism, and the formation of mountain ranges. The collision led to crustal thickening, uplift, and erosion, creating basins where coal deposits formed. This orogeny also contributed to significant mineral deposits exploited today.1234

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.