What is an extrusive rock in North Carolina?

Answer 1

Extrusive rocks in North Carolina are volcanic rocks formed from lava that cools and solidifies on the Earth's surface. An example of an extrusive rock found in the region is basalt, which can be seen in some areas where volcanic activity occurred in the distant geological past. These rocks are typically characterized by a fine-grained texture due to rapid cooling. While North Carolina is primarily known for its metamorphic and igneous rocks, remnants of volcanic activity can still be found in specific locations.