What is the Mohorovičić discontinuity?
the measurement of the speed of seismic waves the measurement of the speed of seismic waves the line where Earth's layers go from solid to liquid the line where Earth's layers go from solid to liquid the refraction of seismic waves the refraction of seismic waves the boundary between the crust and the mantle
The Mohorovičić discontinuity is the boundary between the Earth's crust and the mantle. It marks the boundary between the solid outer layers of the Earth's lithosphere (crust) and the underlying solid mantle. Named after the Croatian seismologist Andrija Mohorovičić, it is characterized by a change in seismic wave velocities.
The Mohorovičić discontinuity, also known as the Moho, is the boundary between the Earth's crust and the mantle. It is named after the Croatian seismologist Andrija Mohorovičić, who discovered it in 1909. At the Moho, there is a significant change in seismic wave velocities, which indicates a transition from the relatively brittle, solid crust to the more plastic, flowing mantle beneath. It is an important geological feature that helps us understand the structure and composition of the Earth's interior.
The Mohorovičić discontinuity, also known as the Moho, is the boundary between the crust and the mantle of the Earth. It was named after the Croatian scientist Andrija Mohorovičić, who first discovered it in 1909. The Moho is characterized by a significant change in seismic wave velocities, which helps distinguish the crust from the underlying mantle.
To determine the location and properties of the Moho, scientists use a technique called seismic wave analysis. Seismic waves are generated by earthquakes and recorded by seismographs. By analyzing the arrival times and velocities of these waves, scientists can infer information about the various layers of the Earth.
To measure the speed of seismic waves, seismographs are strategically placed around the world to record ground motion. When an earthquake occurs, the seismic waves radiate outwards, and seismographs record the motion caused by these waves. By analyzing the time it takes for the waves to reach different seismographs and their speed of travel, scientists can calculate the speed of seismic waves at various depths.
The Moho is identified by a sudden increase in seismic wave velocity, indicating a change in the composition and physical properties of the Earth's interior. This change is primarily due to the transition from the brittle, predominantly solid crust to the more ductile and partially molten mantle.
In summary, the Mohorovičić discontinuity is the boundary between the crust and the mantle of the Earth. Its existence and properties are determined through the analysis of seismic waves recorded by seismographs, which provide information about the speed of these waves at different depths.