1. The problem statement, all variables and given/known data Huge volumes of igneous rock can be erupted and/or intrude in the middle of tectonic plates? True or False 2. Relevant equations 3. The attempt at a solution I am being thrown off by this rather simple problem. I understand that at the border of tectonic plates, a lot is happening and I would expect there to be huge volumes of igneous rock formed through volcano activity. However, in the middle of tectonic plates? I did a google search and found that there are some earthquakes that occur in the middle of tectonic plates, so I am leaning towards answering 'true.' Anyone have any insight here?