continental plate
Noun
tectonic plate found beneath continents.
dormant volcano
Noun
volcano that has erupted in the past but is unlikely to erupt soon.
lava
Noun
molten rock, or magma, that erupts from volcanoes or fissures in the Earth's surface.
vent
Noun
crack in the Earth's crust that spews hot gases and mineral-rich water.
Noun
an opening in the Earth's crust, through which lava, ash, and gases erupt, and also the cone built by eruptions.