1
is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics, and volcanic gases erupt through a break in the surface called a vent.
2
magma (molten rock) emerging as a liquid onto Earth's surface. The term lava is also used for the solidified rock formed by the cooling of a molten lava flow.
3
is extremely hot liquid and semi-liquid rock located under Earth's surface.
4
is a sheet of rock that is formed in a fracture of a pre-existing rock body.
5
is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff,
6
Any opening at the Earth's surface through which magma erupts or volcanic gases are emitted.
7
is a bowl-shaped depression, or hollowed-out area, produced by the impact of a meteorite, volcanic activity, or an explosion.
8
a natural or artificial channel through which something (such as a fluid) is conveyed
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