What caused Earth to be differentiated during which stage of planetary development did that happen?

What caused Earth to be differentiated? … Heat from a combination of radioactive decay and energy released by infalling matter caused Earth’s interior to melt and the densest material to sink to the core during the first stage of development, differentiation.

What evidence do we have that Earth differentiated?

What evidence do we have that Earth differentiated? The curved paths of seismic waves indicate that the interior density of Earth is greater than can be explained by compression alone. Why are Phobos and Deimos not spherical? Their gravity fields are too weak to pull their material into a spherical shape.

Why did Earth and the terrestrial worlds undergo differentiation?

Why did the terrestrial worlds undergo differentiation? Why have larger worlds retained more internal heat than smaller ones? Differentiation- the process by which gravity separates materials according to density, with high-density materials sinking and low-density materials rising.

THIS IS EXCITING:  Question: Which could be a disadvantage of a thin or floppy telescope mirror?

Which stage of planetary development has all but eliminated much of Earth’s surface history?

The first stage of planetary evolution is cratering. Most of Earth’s history has been destroyed by an active crust and erosion.

Why did the early Earth differentiate into core and mantle quizlet?

The soft layer of the mantle on which the lithosphere floats. … Why did the early Earth differentiate into core and mantle? Gravity pulled denser material to the interior and left less dense material on the outside. Coal swamps and deserts are important in the reconstruction of the Earth’s history because they …

When did Earth differentiated?

As the Earth’s surface cooled below 100 degrees Centigrade, water rained out of the atmosphere to form the ocean. When this happened is unknown, but evidence from ancient rocks suggests it was before four billion years ago.

Why did the early Earth differentiate into core and mantle?

Once the melting temperature of iron was reached within the earth, the initially random mixture of dust particles and gases began to unmix and differentiate according to the density of the various materials involved. … were enriched in an outer layer of the earth that is now termed the mantle and the crust.

What two processes are responsible for the differentiation of Earth into layers?

The stratification of Earth into its geologic layers was brought about by the formation of the Earth’s iron core. The iron core was generated by a combination of radioactive decay and gravitation, which raised the temperature enough for molten iron to form.

THIS IS EXCITING:  What if the asteroid belt disappeared?

Which is the first stage of planetary development?

The first stage of planetary development is called differentiation, the settling of dense material, like iron-rich minerals, into the center of a planet and the rising of less dense material, such as silicon-rich minerals, to the surface.

What are the four stages of planetary development quizlet?

After becoming distinct planets, they went through four stages of formation: Differentiation, Cratering, Flooding and Surface Evolution.

What stage in planetary development is it believed that there was a heavy bombardment of planetesimals?

It is generally thought that about 3.8 billion years ago, after a period known as the Late Heavy Bombardment, most of the planetesimals within the Solar System had either been ejected from the Solar System entirely, into distant eccentric orbits such as the Oort cloud, or had collided with larger objects due to the …

What are the differences between oceanic and continental plates quizlet?

Oceanic plates are where there is tectonic plates that are dencer than continental tectonic plate(s). … Continental plates are where there is tectonic plate that are lighter than oceanic tectonic plate(s).

How does continental crust differ from oceanic crust quizlet?

Continental crust is thicker than oceanic crust; continental crust is less dense than oceanic crust; the oldest continental crust is older than the oldest oceanic crust; plus the continental crust is composed of a variety of rock types, whereas oceanic crust is composed of basalt and gabbro.

How do continental and oceanic crust differ?

Oceanic crust differs from continental crust in several ways: it is thinner, denser, younger, and of different chemical composition. Like continental crust, however, oceanic crust is destroyed in subduction zones. The lavas are generally of two types: pillow lavas and sheet flows.

THIS IS EXCITING:  What are 2 advantages of radio telescopes over optical telescopes?