What are Plate Boundaries? By John Carl Villanueva September 10, 2009 Divergent Boundaries:Convergent Boundaries:Transform Boundaries:Tectonic PlatesLithosphereMain Types of Plate BoundariesUnderstanding Plate MotionsPlate TectonicsVolcanoes, Hot and Cold John Carl Villanueva Previous Article ← Schwarzschild Radius Next Article What is Sagittarius A*? →