Tag Archives | jurassic

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Jurassic coast

We recently visited the Dorset Jurassic coast, so named because it features layers of Jurassic limestone: 145 million year old Portland stone and Purbeck stone, as well as layers of Wealden clay, Greensand and Cretaceous chalk cliffs. Some of these layers contain fossil sea urchins and shells, and there is a even a fossil forest, with […]

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Geological map of Britain

Geology and everything

I went to Bath at the weekend, walking from Bradford on Avon along the canal, then through a mile long railway tunnel cut into the limestone. In Monkton Combe we passed the house of William Smith, who made the first geological map of Britain in 1815. The map shows the white streak of oolitic limestone which […]

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