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DESCRIPTION: A Dike is a sheet of rock that forms in a fracture of a pre-existing rocks.

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Figure 1 - An Igneous Dike intrudes the country rock and is subsequently offset in two places by near-horizontal faults. Nova Scotia. (Photo 1974)

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Figure 2 - Dike associated with Shiprock, a Volcanic Neck in New Mexico. (Photo 2019)

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