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break in rock caused by tension forces, where rock above the fault surface moves down relative to the rock below the fault surface
break in rock caused by compression forces, where rock above the fault surface moves upward relative to the rock below the fault surface
break in rock caused by shear forces, where rocks move past each other without much vertical movement
in an earthquake, the point below Earth's surface where energy is released in the form of seismic waves
opening in Earth's surface that erupts sulfurous gases, ash, and lava; can form at Earth's plate boundaries, where plates move apart or together, and at hot spots
the result of an unusually hot area at the boundary between Earth's mantle and core that forms volcanoes when melted rock is forced upward and breaks through the crust
largest intrusive igneous rock body that forms when magma being forced upward toward Earth's crust cools slowly and solidifies underground
igneous rock feature formed when magma is squeezed into a vertical crack that cuts across rock layers and hardens underground
igneous rock feature formed when magma is squeezed into a horizontal crack between layers of rock and hardens underground
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