Evolution of the theory of Plate Tectonics
****************DISCONTINUITY************************** 1. MOHOROVICIC DISCONTINUITY- a point at which a function is discontinuous or undefined In geology the word "discontinuity" is used for a surface at which seismic waves change velocity. Mohorovičić Discontinuity - The Moho The Mohorovicic Discontinuity, or "Moho," is the boundary between the crust and the mantle. The red line in the diagram shows its location. In geology the word "discontinuity" is used for a surface at which seismic waves change velocity. One of these surfaces exists at an average depth of 8 kilometers beneath the ocean basin and at an average depth of about 32 kilometers beneath the continents. At this discontinuity, seismic waves accelerate. This surface is known as the Mohorovicic Discontinuity or often simply referred to as the "Moho." How Was the Moho Discovered? The Mohorovicic Discontinuity was discovered in 1909 by Andrija Mohorovicic,