Basin extends over . Northern Greenland (Peary Land) The northern Greenland province, also known as Peary Land, contains three dike swarms. The Nansen Land swarm trends SSE-SE and is the oldest of the swarms. The middle-aged swarm is known as the Erlandsen Swarm and trends SE-ESE. The J. P. Koch Swarm is the youngest of the three and trends eastward. The two younger swarms tend to have igneous rocks of alkaline composition, while the Nansen Land swarm tends to have more tholeiitic composition. The Peary Land province covers an area of over . Barents Sea The Barents Sea province is characterized by igneous intrusions with much similarity to Svalbard and Franz-Josef Land. This region is well known for being petroleum-rich. The Barents Sea province covers an area of . Climatic impact Large igneous provinces such as HALIP are thought to have caused global climate change. Late Cretaceous (92–86 Ma) vertebrates, including long champsosaurs, a crocodile-like reptile, found in the Canadian Arctic suggests that polar climate was much warmer during the Cretaceous when average annual temperature must have exceeded 14 °C. The BLIP intrusions could have released perhaps of carbon from the contact aureoles which could have triggered the Aptian oceanic anoxic event (OAE1a) at 120 Ma. See also Volcanism of Canada Volcanism of Northern Canada References Notes Sources Large igneous provinces Cretaceous volcanism Geography of the Arctic Volcanism of Nunavut Volcanism of the Arctic Ocean Volcanism of Norway Volcanism of Russia Prehistory of the Arctic Geology of the Arctic Geology of the Arctic Ocean Geology of Russia Cretaceous Europe Cretaceous North America Cretaceous Canada Cretaceous Norway