Rock from the Skiddaw Group, of Ordovician (Tremadocian) age, at Scawgill Bridge quarry in Cumbria, England, UK.

Rock from the Skiddaw Group, of Ordovician (Tremadocian) age, at Scawgill Bridge quarry in Cumbria, England, UK.

Informations
Auteur
Graeme Churchard (GOC53) https://www.flickr.com/people/graeme/
Licence
CC BY 2.0
Source
Wikimedia
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Associé à
interval Trémadocien principale