Giant's Causeway
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The Giant's Causeway is an area of approximately 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption, part of the North Atlantic Igneous Province active in the regio
The Giant's Causeway
Engraving of Susanna Drury's A View of the Giant's Causeway: East Prospect, 1768
Red basaltic prisms
Giant's Causeway at sunset
Columnar jointing
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Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms, or columns. Colu
Giant's Causeway
…The Giant's Causeway (Irish: Clochán an Aifir or Clochán na bhFomhórach) is an area of approximately 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption, part of the North Atlantic Igneous Province active in the region during the Paleogene period. It…
Columnar jointing in Giant's Causeway in Northern Ireland
Columnar jointing in the Alcantara Gorge, Sicily
Devils Tower is an eroded laccolith in the Black Hills National Forest, Wyoming.
Hexagonal volcanic tuffs at East Dam of High Island Reservoir