The Giant’s Causeway is located on the northern coast of County Antrim in Northern Ireland , east of the small town of Bushmills about 80 miles from Belfast.
UNESCO is one of the Giant’s Causeway World Heritage Site. It consists of about 40,000 evenly shaped basalt columns that have an age of about 60 million years ago. About half of the columns have a hexagonal cross-section , but also occur in those with four, five , seven, or eight corners. The largest of the stone columns have a height of twelve meters. The rock layer is up to twenty-five feet thick. The Giant’s Causeway leads about five kilometers along the cliffs and ends in the sea, what he is again – the old legend of Fionn mac Cumhaill According – shows up on the Scottish coast as Fingal ‘s Cave . Geologists lead the creation of the basalt dam back to the cooling of hot lava. Vertical columnar basalt formations can occur with very slow and uniform cooling of lava. The pillar structure thereby forms from slowly into running into the material stress cracks. These are caused by the cooling and contraction of the material and spread perpendicular to the cooling surface. The volcano , whose lava led to the formation of the Giant’s Causeway, is now worn away by erosion.