East Greenland Orogen
Geologically, the mountain chain consists of late Cryogenian to late Devonian (650 to 350 millions years ago) fold and thrust belts. Little is known about the exact timing and setting of the earlier phases as this area was later heavily deformed during the Caledonian Orogeny (450 to 350 million years ago). The rocks of the East Greenland orogen are mostly Silurian granites with Devonian sedimentary rocks overlying Ediacarian marine deposits, all on a basement of gneisses.
The current mountain range formed as a result of uplift during the opening of the Atlantic Ocean in the Cretaceous and early Tertiary (starting 100 million years ago). The related East Greenland Rift Basin oil deposits are estimated to be one of the largest in the world.
- Allagui, Slim (July 16, 2006). "Greenland Makes Oil Companies Melt". Agence France-Presse. Retrieved 2008-08-31.
- Caledonian orogeny on Eastern Greenland
- Britannica Encyclopedia article of East Greenland orogen
- Abstract of the paper "Foreland-propagating Caledonian thrust systems in East Greenland"
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