The Origin of the Ocean - Stars from Seas - Solar Systems form by Accretion
3 important questions on The Origin of the Ocean - Stars from Seas - Solar Systems form by Accretion
What is the process of accretion?
The clumping of small particles to larger masses. This is how new planets formed in the disk of dust and debris surrounding the young sun.
What happened to the solar nebula that created our Earth and ocean?
The solar nebula (thin cloud) was probably struck by the shock wave of a super nova explosion. It was effected in two important ways.
1) the shock wave caused the condensing mass to spin.
2) the nebula absorbed some of the heavy atoms from the passing supernova remnants. So the star had to life its live (and produce elements) to be exploded in the end which formed our solar system.
1) the shock wave caused the condensing mass to spin.
2) the nebula absorbed some of the heavy atoms from the passing supernova remnants. So the star had to life its live (and produce elements) to be exploded in the end which formed our solar system.
What can we tell more about the formation of Earth?
1) At rist, the planet grew by the aggregation of particles. Meteors and asteroids bombarded the surface, heating the planet and adding to its growing mass.
2) Earth lost volume because of gravitational compression. High temperatures in the interior turned the inner Earth into a semisolid mass; less dense particles moved to the outer layers. Friction generated by this warmed the Earth even more.
3) The result of density stratification is evident in the formation of the inner and outer core, the mantle and the crust.
2) Earth lost volume because of gravitational compression. High temperatures in the interior turned the inner Earth into a semisolid mass; less dense particles moved to the outer layers. Friction generated by this warmed the Earth even more.
3) The result of density stratification is evident in the formation of the inner and outer core, the mantle and the crust.
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