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.

What are the 4 stages of planetary development?

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

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

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What are the stages of planet formation?

A newly-formed terrestrial planet, such as the Earth or Venus, goes through four distinct stages of development: Differentiation, Cratering, Flooding and Surface Evolution.

What 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 of one.

What is the planetary process?

In planetary science, planetary differentiation is the process of separating out the different components within a planetary body as a consequence of their physical or chemical behavior (e.g. density and chemical affinities).

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

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

What is nebula theory?

The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planets [12].

What is protoplanetary hypothesis?

How did the Solar System’s planets come to be? The leading theory is something known as the “protoplanet hypothesis”, which essentially says that very small objects stuck to each other and grew bigger and bigger — big enough to even form the gas giants, such as Jupiter.

What happened during Earth’s planetary differentiation?

The differentiation, or organization, of the Earth into layers is perhaps the most significant event in its history. It led to the formation of a core, a crust, and eventually continents. The light elements were driven from the interior to form an ocean and atmosphere.

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What is the leading theory on planetary development?

The most widely accepted hypothesis of planetary formation is known as the nebular hypothesis. This hypothesis posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years.

What were the main stages of the solar system formation theory?

Timeline of Solar System evolution

Phase Time since formation of the Sun Time from present (approximate)
Pre-Solar System ~ 50 million years before formation of the Solar System 4.6 bya
Formation of Sun 0–100,000 years 4.6 bya
100,000 – 50 million years 4.6 bya
100,000 – 10 million years 4.6 bya

What is the process in planetary formation when heavy materials?

This process is called accretion. The objects formed by accretion are called planetesimals (small planets): they act as seeds for planet formation.

What is the final stage of planet formation?

The final stage of accretion has been described as ‘runaway accretion’. Planetesimals are swept up into well defined zones around the sun which approximate to the present orbits of the terrestrial planets. The process leads eventually to a small number of large planetary bodies.

What stage is the Earth in?

Earth is currently situated in the Phanerozoic Eon, Cenozoic Era, Quaternary Period, Holocene Epoch and Meghalayan Age.