Hard rock and hard water
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Hard rock and hard water
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All of these podcasts are geological but this episode is three-quarters pure rock. First the plan is to look closely at the rock that provided the mortar for the wall – limestone – did the Romans use it to sweeten these northern soils too – they can be pretty acid. Next its more whin Sill – I am starting to wonder if there’s too much on this rock already, but it does play a huge role in the landscape and on Roman plans and they say you can’t get enough of a good thing. The Whin has a part to play in a trip to Coventinas Well too, but a subtle part. And finally we are off in search of a very modern rock – one that starts soft and goes hard and one the Romans had a very special job for.
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