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Volcanoes and molten underground rock

Bamburgh Castle and Lindisfarne Castle sit on top of black crags which are all part of the Whin Sill. Along the beautiful exposures of this unique feature on the coast we can look at how this vast slug of molten rock was injected between the sheaves of sedimentary rock. Away from the coast the grand range that is the Cheviot marks the bare roots of an ancient volcano.

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Testimonials

  • "Ian is an ethusiastic geologist and if you go on enough of his walks you soon will be too! Although I have visited the Northumberland Coast many times before, learning about its geology allowed me to see it from a very different perspective. Ian was an enagaging and entertaining guide and as a result of his walk I was able to understand more about this fascinating area."

    Sam Isaac
    Sustainable Tourism researcher

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