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Date: 2007-07-16 09:47:14Orogeny Devonian Geology of England Carboniferous Paleozoic Variscan orogeny Caledonian orogeny Windermere Supergroup Avalonia Geology Geologic time scale Phanerozoic | A Registered Charity No[removed]Circular 521 YORKSHIREDocument is deleted from original location. Download Document from Web Archive |