Figure 1 -- Palentine Bridge limestone quarry, Mohawk Valley, N.Y. In the foreground the excavated dolomitized en-echelon fault zone is visible; limestones are grey and the dolomites have a brown tan. The 3-D GPR survey (figure 2) is located in the background of this view, where the fault was still buried under rubble.

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Photo courtesy of Mark Grasmueck