What geological phenomenon defines the activity observed on icy satellites like Enceladus, in contrast to Io?

Answer

Cryovolcanism

Icy satellites often exhibit cryovolcanism, which involves the eruption of water, ammonia, or methane ices rather than the molten rock characterizing Io's activity.

What geological phenomenon defines the activity observed on icy satellites like Enceladus, in contrast to Io?
GeologyPlanetary SciencemoonsVolcanismIo