Accretion of the planet

Question 1

How do particles accumulate?

Answer 1

Electrostatic attraction pulls together until gravity is an affecting factor

Question 2

How long after formation did this accumulation occur?

Answer 2

50 million years after ignition

Question 3

What happened between 50-100 million years after accumulation?

Answer 3

Planetary body formed & in orbit

Question 4

What happened 4Ba?

Answer 4

Thei collided with Earth & clipped off mantle to form moon, earth assumed differentiated at this time

Question 5

How would you describe early Earth?

Answer 5

Homogeneous body with primordial material similar to chondrite

Question 6

What are source of heat for the planet?

Answer 6

Kinetic energy from impact
Pressure and temperature increases
Radioactive decay of 235U, 238U, 232Th. 40K (elements x10 of today)
Change in gravitational potential energy

Question 7

When was the planet assumed fully created?

Answer 7

After 10 million` years

Question 8

How were elements redistributed?

Answer 8

Convectional cooling and processes associated with igneous bodies