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Edinburgh

Holyrood Park: Arthur's Seat & Salisbury Crags

Arthur's Seat is a remnant of an extinct volcano located in the heart of Edinburgh. It is estimated to be between 350 and 400 million years old. It sits atop a layer of sedimentary rocks that were deposited before the volcano formed. Over the millions of years of activity, immense forces tilted the volcano and surrounding sediments.

The Salisbury Crags is large sill that was exposed long after the volcano became extinct. The tilting of the surrounding land and later periods of glaciation in the region led to the exposure of the area. A 17^th century geologist, James Hutton, used the Salisbury Crags to support his theory of Uniformitarianism. His theory became one of the foundations of modern geology.

The ruin of St. Anthony's Chapel is situated north of Arthur's Seat. It is estimated that the Chapel was built in the early 14^th century although the exact origin and history of the chapel is unknown.

Darren

| UK 2002 Index | Calendar |