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Volcanoes.
Pocket of magma beneath the surface
Magma is the molten material beneath the surface (crust) of the earth. Magma is called lava when it emerges from the earth in its molten state. The volcano is the geologic structure at the end of a volcanic chimney, which is the duct that connects the magma pocket in the earth through the crust to the surface. The volcano is actually at the "output end" of that volcanic tube.
Oceanic-to-Oceanic plate boundary triggers the formation of active volcanoes as magma rises beneath the surface.Transform plate boundaries trigger the formation of active volcanoes as magma rises beneath the surface.
All volcanoes are characterized by a vent or opening through which molten rock, gas, and ash are expelled from the Earth's interior. They also have a magma chamber beneath the surface where molten rock accumulates before eruptions. Additionally, volcanoes are usually located near tectonic plate boundaries where the Earth's crust is either converging, diverging, or slipping past each other.
Molten rock, or in other words, magma or lava. Magma exists beneath the Earth's surface, lava is flowing magma produced by the eruption of volcanoes.
Lava. Note: Magma cant erupt, volcanoes do. Magma is just the word for molten rock beneath the earths surface, lava is for molten rock above the earths surface.
Molten rock, or in other words, magma or lava. Magma exists beneath the Earth's surface, lava is flowing magma produced by the eruption of volcanoes.
Magma is the molten rock found beneath Earth's surface. When magma rises to the surface and erupts through volcanoes, it is referred to as lava. Magma can cool and solidify underground to form igneous rock.
Magma is hot liquid lava that erupts out of a volcano, it's already under the entire surface of the Earth. In areas where the crust is weak, that's where the magma forms.
Openings in the earth's crust that allow magma to reach the surface are called volcanic vents or volcanic fissures. These openings are connected to magma chambers beneath the surface and can lead to volcanic eruptions when magma is expelled through them.