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The North Atlantic Igneous Province (NAIP) is a large igneous province in the North Atlantic, centered on Iceland.In the Paleogene, the province formed the Thulean Plateau, a large basaltic lava plain, [1] which extended over at least 1.3 million km 2 (500 thousand sq mi) in area and 6.6 million km 3 (1.6 million cu mi) in volume. [2]
This region, known as the Thulean Plateau, is generally believed to have been broken up by the foundering of the Earth's crust to form the present ocean basin. Earth features numerous subaerial and submarine volcanic plateaus, such as the Columbia River Plateau (subaerial) and the vast Ontong Java Plateau (submarine).
In 1992, Coffin and Eldholm initially defined the term "large igneous province" as representing a variety of mafic igneous provinces with areal extent greater than 100,000 km 2 that represented "massive crustal emplacements of predominantly mafic (magnesium- and iron-rich) extrusive and intrusive rock, and originated via processes other than 'normal' seafloor spreading."
A map of the world voyage done by Sir Francis Drake in 1577-1580 shows Thule (Tile/Tule) as what is likely modern Iceland near Greenland. [ 35 ] The British surveyor Charles Vallancey (1731–1812) was one of many antiquarians to argue that Ireland was Thule, as he does in his book An essay on the antiquity of the Irish language . [ 36 ]
Chilcotin Plateau Basalts [e] Tortonian: 11.62 * Serravallian: 13.82 * Langhian: 15.97 M. Miocene disruption (14.8–14.5) [f] Columbia River Basalt Group [g] Chilcotin Plateau Basalts [e] Increased Antarctic deep waters Yellowstone hotspot Nördlinger Ries (14.5-14.3) Burdigalian: 20.44 Aquitanian: 23.03 * Shield volcanoes of Ethiopia [h ...
Much of the northeast of Ireland is a basalt plateau. An area of particular note is the Giant's Causeway on the north coast, a mainly basalt formation caused by volcanic activity between 50 and 60 million years ago. [21] The basalts were originally part of the great Thulean Plateau formed during the Paleogene period. [22]
The Giant's Causeway (Irish: Clochán an Aifir) [1] is an area of approximately 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption. [3] [4] It is located in County Antrim on the north coast of Northern Ireland, about three miles (4.8 km) northeast of the town of Bushmills.
The different cultures in Greenland, Labrador, Newfoundland and the Canadian arctic islands between 900 AD and 1500 AD. The Thule (/ ˈ θj uː l i / THEW-lee, US also / ˈ t uː l i / TOO-lee) [1] [2] or proto-Inuit were the ancestors of all modern Inuit.