The Great Geoadvent: Door 17
The volcano has been eroded so that now less than half remains, and this allows us to walk into the heart of the volcano and see rocks created underground.
Holyrood Park holds a special place in the history of science, for it was here in the late 18th century that James Hutton found evidence to support his theories about the workings of the Earth. At Salisbury Crags, he observed igneous and sedimentary rocks and understood that they had been formed at different times by different processes. He suggested that the Earth was very old, and continually changing; a startling new idea that changed forever the way people thought about our planet, and influenced other scientists such as Charles Darwin. James Hutton is now recognised as the ‘father of modern geology’.
Text courtesy of Angus Miller at Geowalks
Images:
- Salisbury Crags & Arthur’s Seat © Jim Barton (Source Geograph.org.uk) Creative Commons Attribution-ShareAlike 2.0 license.
- Arthur’s seat & Salisbury Crags above Edinburgh rooftops © Ellard38 (Source Wikimedia Commons) Public Domain
Source: https://blog.geolsoc.org.uk/2018/12/17/the-great-geoadvent-door-17/
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