Geology Word of the Week: H is for Hotspot

Travertine forming at a hotspring, Yellowstone hotspot, Fall 2005.

 def. Hotspot:
1. A place where you can obtain internet in order to write your geology blog.
2. A thermal anomaly within Earth's mantle, generally consisting of a hot, rising plume of mantle material that generates volcanism- or increased volcanism- on Earth's surface.