Subduction is familiar to me, and I've got huge scars in my brain where the surface plates collided. Subduction in the brain causes a reduction in ability to process information. Dendrites disappear, and one is often reduced to reptilian thinking from the inward pressure on both the limbic system and brain stem. I think that's why the T-Rex footprint appeared in my dream the other night, certainly a consequence of subduction.

Now, superplumes are news here, and fascinating to consider. I think of drum majors in the brain with superplumes flaring from their hats. I also think about how Whoopie Goldberg was dressed for the Academy Awards...and, well, who wouldn't, D. H. Lawrence.

In the spirit of psychogeology,
DubDub