Grenville Orogeny

The Grenville Orogeny was a long-lived Mesoproterozoic mountain-building event associated with the assembly of the supercontinent Rodinia. Its record is a prominent orogenic belt which spans a significant portion of the North American continent, from Labrador to Mexico, as well as to Scotland. Orogenic crust of mid-late Mesoproterozoic age (circa 1250-980 Ma) is found worldwide, but generally, only events which occurred on the southern and eastern margins of Laurentia are recognized under the “Grenville” name. These events are known as the Kibaran orogeny in Africa, the Dalslandian orogeny in western Europe.