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Strata

About 320 million years ago, during the Upper Carboniferous period, the area of the Cliffs of Moher was much warmer and situated at the mouth of a larger river. Heavy rainfall created great floods that washed sand and mud into rivers flowing to the sea. The sand, silt and mud were dumped at the mouth of the great delta and over time, the sediments became compacted into solid rock which we now know as the Cliffs.

 

Individual rock layers vary from centimetres to metres. Each layer is a representation of a specific event in the life of the ancient delta as it migrated into the sea.

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Uploaded on November 10, 2017
Taken on April 29, 2017