Figure 4. Offset layers. The most obvious evidence that faulting has occurred is where a layer in the rock is broken and displaced. A distinctive layer, like the white one in this photo, can be matched across the fault so that the distance and direction of motion can be measured. The distance that rock on one side has moved in relation to rock on the other side is called the offset. Show the main fault. (Photo by Henry Berry, Maine Geological Survey.)

---

Last updated on April 26, 2007

Maine.gov | Department of Conservation | MGS Home | Site Policies