Lecture 18 Flashcards
1
Q
What are the four moons of Jupiter?
A
– Io
– Europa
– Ganymede
– Callisto
2
Q
Io Volcanic features
A
- Io is the most volcanically active body in the solar system
- Volcanic pit craters, calderas, shield volcanoes and so on
- there are umbrella shaped eruption Plumes
3
Q
Tidal heating in Io
A
- Caused by gravitational interaction btw Jupiter and Io
- Volcanic Activities: The heat generated from this frictional movement drives strong volcanic activities on Io’s surface
4
Q
Io compared to Europa
A
- Io is closer to Jupiter, larger and denser
↳ Composed of silicates and sulfur - Europa is smaller, less dense and composed of silicates and water ice
- Io has a slightly higher temp (118k vs 103k)
5
Q
Europa features
A
- surface is characterized by fractured water ice with few craters
6
Q
Ganymede compared to Europa
A
- Ganymede is further from Jupiter & larger
- Composition is the same but it has a higher temperature
7
Q
Ganymede Features
A
- The surface of Ganymede is characterized by a
dark, cratered terrain and a light, grooved terrain
↳ Dark cratered terrain is darkened by silicate
↳ Light grooved terrain is shallow but long
8
Q
Callisto compared to Ganymede
A
- Callisto is a lot further away from jupiter
- It is smaller with a similar denisty and same composition
- Temp is very similar
9
Q
Callisto Features
A
- The surface of Callisto is dominated by impact structures
- Impacts onto an icy surface
10
Q
What causes the differences in the Galilean Satellites
A
- The differences come with distance from jupiter
↳ Increase in surface ages
↳ Decreases in density
