Caledonian orogeny
MOUNTAIN-BUILDING ERA
Caledonian Orogeny; Caledonian mountains; Caledonides; Caledonian Mountains; Caledonian Orogenic Belt; Caledonian folding; Caledonian fold mountains; Grampian phase; Grampian Orogeny; Scandian phase
The Caledonian orogeny was a mountain-building era recorded in the northern parts of the British Isles, the Scandinavian Mountains, Svalbard, eastern Greenland and parts of north-central Europe. The Caledonian orogeny encompasses events that occurred from the Ordovician to Early Devonian, roughly 490–390 million years ago (Ma).