Solar system Flashcards
1
Q
How old is the universe?
How old is our solar system?
A
- 8Gya
4. 6Gya
2
Q
What does telluric mean?
A
A planet composed of silicate rock.
3
Q
Give some facts on Venus
A
Venus and Earth have similar mantle compositions
Venus and Earth have similar core sizes. (Geochemical twins).
Venus flat with weird volcanoes.
Usually too hot for volcanoes, and too hot for tectonic plates.
Atmosphere alot more of CO2.
Alot of Ar because of K making it and degassing.
4
Q
Give some facts on mars
A
Magma stalls at greater depths on mars.
5
Q
Which one is older, darker or lighter bits on the moon?
A
Dark bits 3Gya, white bits 4.45Gya
