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Where is the Mohorovicic Discontinuity found?
Moho, or Mohorovičić discontinuity, boundary between the Earth’s crust and its mantle. The Moho lies at a depth of about 22 mi (35 km) below continents and about 4.5 mi (7 km) beneath the oceanic crust. Modern instruments have determined that the velocity of seismic waves increases rapidly at this boundary.
What is Gutenberg discontinuity in geography?
The Gutenberg discontinuity occurs within Earth’s interior at a depth of about 2,900 km (1,800 mi) below the surface, where there is an abrupt change in the seismic waves (generated by earthquakes or explosions) that travel through Earth. This discontinuity is also called the Wrichert-Gutenberg discontinuity.
At which location in the diagram is the Moho found?
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.
How does the energy of an earthquake travel through the earth?
Explain to students that earthquake energy travels in the form of waves. These waves are called seismic or earthquake waves. Body waves pass through the interior of the Earth whereas surface waves travel along the Earth’s surface.
What is Mohorovicic and Gutenberg discontinuity?
Moho Discontinuity is the boundary between crust and mantle. Gutenberg Discontinuity is the boundary between mantle and core.
Where is the Moho boundary?
The Moho is the boundary between the crust and the mantle in the earth. This is a depth where seismic waves change velocity and there is also a change in chemical composition.
What drives plate tectonics?
The driving force behind plate tectonics is convection in the mantle. Hot material near the Earth’s core rises, and colder mantle rock sinks.
What is Bullen discontinuity?
Bullen Discontinuity – separates liquid outer core from solid inner core. S waves are generated when a P wave is refracted across the outer core/inner core boundary. Note that the these S waves are confined to the inner core; they can not cross back into the liquid outer core.