In the case of Mars, the depth needed for geothermal melting of ice is 4-6 kilometers, and the ice layers are probably only 3.4 to 4.2 km in thickness of the north polar cap.
The depth needed for geothermal melting of ice is 4-6 kilometers. This is in the case of Mars. The ice layers are probably only 3.4 to 4.2 km in thickness of the north polar cap. This is in the case of Mars.