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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 Giant's Causeway (Irish: Clochán An Aifir) on the north Antrim coast of Northern Ireland was created by volcanic activity 60 million years ago, and consists of over 40,000 columns. [1] [7] According to a legend, the giant Finn McCool created the Giant's Causeway, as a causeway to Scotland. [8]
Basalt columns seen on Porto Santo Island, Portugal. Columnar jointing of volcanic rocks exists in many places on Earth. Perhaps the most famous basalt lava flow in the world is the Giant's Causeway in Northern Ireland, in which the vertical joints form polygonal columns and give the impression of having been artificially constructed.
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]
View from the depths of the cave with the island of Iona visible in the background, 2008 Basalt columns inside Fingal's Cave, 2022. Fingal's Cave is formed entirely from hexagonally jointed basalt columns within a Paleocene lava flow [2] and is similar in structure to both the Giant's Causeway in Northern Ireland and Ulva.
About 500 metres offshore from the headland is Cook Island, a rocky uninhabited island first charted by James Cook in 1770. The interlocking basalt columns on the north-east side of Fingal Head were called the "Giants Causeway", named after the famous Giants Causeway between Northern Ireland and Western Scotland.
In the early Palaeogene period, between 63 and 52 Ma, the last volcanic rocks in Great Britain were formed. The major eruptions at this time produced the Antrim Plateau, the basaltic columns of the Giant's Causeway and the lavas and igneous intrusions of the Inner Hebrides of Scotland.
The Giant's Causeway is an area of 40,000 interlocking basalt columns resulting from a volcanic eruption on the coast of Northern Ireland. Giant's Causeway may also refer to: Giant's Causeway (horse) , Europe's Horse of the Year in 2000