The Innuitian orogeny, sometimes called the Ellesmere orogeny, was a major tectonic orogeny (mountain building episode) of the late Devonian to early Carboniferous, responsible for the formation of a series of mountain ranges in the Canadian Arctic and Northernmost Greenland.H.P. Trettin (ed.), Geology of the Innuitian Orogen and Arctic Platform of Canada and Greenland. 1991, p. 46 The episode started with the earliest Paleozoic rifting, extending from Ellesmere Island to Melville Island.The Atlas of Canada - Geological Provinces However, the cause of the orogen remains poorly understood.
See also Innuitian Mountains Roosevelt Range
References
External links Geological Regions: Innuitian orogen