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BrigantesNation B
BrigantesNation Jun 20, 2005 16:42:15
Replying to fitzcoraldo

Just as a by-the-by - how does chalk react with rocks when dissolved with water? I know in the dales most of the erosion is caused by disolved carbonic acid, but I think this has to be formed in the atmosphere in storm conditions - what about simple chalk?

R rocknicker
rocknicker Jun 20, 2005 16:52:57
Replying to BrigantesNation

chalk is calcium carbonate, same as limestone, so doesn't really dissolve in water unless there is acid present too. This would create a solution of soluble calcium hydrogen carbonate contained in hard water.