What is Gutenberg discontinuity answer?
What is Gutenberg discontinuity answer?
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.
What two layers are separated by the Gutenberg discontinuity?
The mantle–core boundary is the Gutenberg discontinuity at a depth of about 2,800 kilometres. The outer core is thought to be liquid because shear waves do not pass through it.
What is the importance of Gutenberg discontinuity?
Among his important scientific contributions, Gutenberg identified the depth of Earth’s core–mantle boundary (see figure 1), a discontinuity where seismic secondary waves are absorbed by the liquid core. At the top of the mantle, some 40 to 100 km beneath the ocean basins, another sharp seismic discontinuity exists.
Who discovered Gutenberg discontinuity?
Beno Gutenberg
Interesting Facts About Beno Gutenberg Gutenberg has two sections of the Earth’s interior that bare his name. First, there is an area at the bottom of the D” layer that is called the Gutenberg discontinuity. It occurs at 2900 km and marks and abrupt change for seismic waves that are traveling through the Earth.
Which seismic waves does move up to Gutenberg discontinuity?
Which layer is responsible for Earth’s magnetic field what is Gutenberg discontinuity?
The mantle –core transition zone is called Gutenberg discontinuity. In the year of 1912 Weichert Gutenberg was discovered this discontinuity at the depth of 2900km beneath the earth surface. In this zone the velocity of seismic waves changes suddenly.
What is the purpose of discontinuity in the earth’s layers?
Mohorovicic Discontinuity: The Moho separates both the continental crust and the oceanic crust from underlying mantle. The Moho lies almost entirely within the lithosphere, only beneath the Mid Oceanic Ridge does it define lithosphere and asthenosphere boundary.
In which two layers of the Earth does the Gutenberg discontinuity lies?
Mohorovicic Discontinuity: Transition zone between the Crust and Mantle. Repiti Discontinuity: Transition zone between Outer mantle and Inner mantle. Gutenberg Discontinuity: Transition zone between Mantle and Core.
What is composition made of?
composition Add to list Share. Composition is another word for writing — the act of writing or the piece of writing that results. It also refers to what something is made of. The word composition comes from the Latin componere, meaning “put together” and its meaning remains close to this.
How many types of composition are there?
four modes
The four modes of composition, which were codified in the late 19th century, are description, narration, exposition, and argumentation. Good writing can include elements of multiple modes of composition.
How many kinds of composition are there?
four types
There are four types of composition writing: description, narration, exposition, and argumentation. Each type has a distinct purpose and pattern of organization.