In geology, a resurgent dome is a volcanic dome that is swelling or rising due to movement in the magma chamber. In the monitoring of volcanic hazards, resurgent domes are often observed the most. Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason)) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. ... A volcano is a geological landform (usually a mountain) where magma (rock of the earths interior made molten or liquid by high pressure and temperature) erupts through the surface of the planet. ... A magma chamber is the chamber beneath a volcano where the magma is held before an eruption. ...