Stone Mountain, found in North Georgia, has a unique history. It was formed of magma that hardened underground. This formation is called a pluton. Over millions of years a few processes caused the pluton to be exposed. First, it was pushed up by tectonic plates that built the Blue Ridge Mountains. Then the rock was exposed by earthquake action and erosion.
Answer: tectonic plates
Explanation:
The Stone Mountain is a 514 meter tall broadly uniform monolithic structure that is situated in Georgia. The action of plates that caused the formation of the Blue Ridge Mountains also triggered the coming up of the Stone Mountain to the surface which existed at a certain depth inside the Earth's crust.
