Stone Mountain was formed during the formation of the Blue Ridge Mountains around 300-350 million years ago and is considered part of the Appalachian Mountains. It formed as a result of the upwelling of magma from within the Earth's crust. This upwelling, or _____________, solidified to form the ______________ that became Stone Mountain.

Responses
A intrusion; marble
B extrusion; quartz
C intrusion; granite
D extrusion; granite

1 answer

The correct answer is:

C. intrusion; granite

Stone Mountain is primarily composed of granite, which forms from the slow cooling and solidification of magma (intrusive igneous rock) beneath the Earth's surface.