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Ireland through geological time

​Ireland has a rich and diverse geological history spanning from 1.8 billion years ago to today.  The geology of Ireland charts the opening and closing of the Iapetus Ocean, opening of the North Atlantic Ocean, movement from close to the South Pole, through the southern mid-latitudes, the southern tropics, equator, northern tropics, northern mid-latitudes and to current location. This section gives a brief account of the formation of Ireland through geological time from the Proterozoic to the Quaternary.