Name this geologic process in which one tectonic plate slides  beneath another.
Blueschist and eclogite are characteristic minerals formed by this process, which is labeled "flat-slab"   at angles less than 30 degrees. Before the Yucca Mountain site opened, Nevada considered using  this process to dispose of nuclear waste. The Aleutians form an arc because of this process, which   generates earthquakes in Wadati-Benioff zones. This process explains why the Farallon Plate, named  for San Francisco islands, no longer exists. It only occurs at convergent boundaries and is responsible  for forming the "ring of fire" volcanoes. Name this geologic process in which one tectonic plate slides  beneath another.
Blueschist and eclogite are characteristic minerals formed by this process, which is labeled "flat-slab"   at angles less than 30 degrees.
subduction [prompt on tectonic shifts or continental drift]