Exploratour - Does Europa have an Ocean?
4.) Now let's move on to the fourth point. The geologic unit called "global linea" suggests a process called "sea floor spreading", or perhaps "pull apart features". In this process, the crust separates and spreads apart. On Earth, the crust which separates and spreads apart is made of rock. On Europa, the crust is made of ice.
This is page 11 of 20
This is page 11 of 20