The tunnel is called a lava tube or magma tube.
It's called a conduit.
conduit
a tube or vent tube
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Vents in the volcano are passage ways for the magma, steam, and heat to escape the earth.
The channel that magma uses to travel toward the vent in a volcano is called a "conduit." It is a narrow passage within the volcano that allows molten rock to move from the magma chamber to the surface during an eruption.
A Magma Conduit is hot fluid or semi-fluid material within the earth's crust from which lava and other igneous rock is formed by cooling.
The order of parts through which magma reaches the surface of a volcano is the magma chamber where it accumulates, followed by the central vent or conduit where it travels upwards, and finally the crater or vent at the surface where it erupts and flows out as lava.
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.
conduit
It's called a conduit.
Vents in the volcano are passage ways for the magma, steam, and heat to escape the earth.
Crystallization followed by exposure and weathering.
Crystallization followed by exposure and weathering.
Crystallization followed by exposure and weathering.
Magma can cool and solidify to form igneous rock, which then weathers and breaks down into smaller particles through physical and chemical processes. These particles mix with organic matter and other substances to create soil. Over time, as plant roots grow and break down rock further, the soil becomes more developed and conducive to supporting plant life.
The channel that magma uses to travel toward the vent in a volcano is called a "conduit." It is a narrow passage within the volcano that allows molten rock to move from the magma chamber to the surface during an eruption.
A Magma Conduit is hot fluid or semi-fluid material within the earth's crust from which lava and other igneous rock is formed by cooling.
The crevice through which magma bursts out of is called a volcanic vent. It is a fissure or opening in the Earth's crust through which molten rock, ash, and gases are expelled during a volcanic eruption. Volcanic vents can vary in size and shape.
The order of parts through which magma reaches the surface of a volcano is the magma chamber where it accumulates, followed by the central vent or conduit where it travels upwards, and finally the crater or vent at the surface where it erupts and flows out as lava.
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.