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Original Text (Annotation: SAW029893 / 236607)

' The Great Glen Fault. A strike-slip fault where the land to the west has moved north and the land to the east has moved south, relative to each other. Having been around for some 400 million years, it is in the same class as the San Andreas fault in California. Now mostly inactive since its final phase of movement during the late Cretaceous, there are still occasional tremors recorded today. The structural weakness around the fault allowed glacial erosion during the last ice age to form the glen that now contains Loch Ness. '





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