It depends. Steam from an eruption may rise several thousand feet into the air. Eruption columns, which are composed of ash rather than smoke, may be several miles tall. The very tallest may be over 20 miles high.
In very large explosive eruptions the cloud of ash and gas can rise 30 miles into the sky. This is not from the gas being thrown out, but rather the gas rising due to buoyancy.
Ash, rock, dust, dirt, and lava.
lava go about 900 feet in the air
50 km
high
Typically, high viscosity, high gas magma results in a Plinian (explosive) eruption. The gas pulverizes the magma into ash and may form lateral pyroclastic flows.
Yes. Composite volcanoes often have a high gas content in their magma, which is why they often erupt explosively.
A volcano erupts when gases build to an inescapable high pressure. The gas pushes magma and ash through the cone of the volcano causing an eruption.
high viscosity and dissolved gas
high
Typically, high viscosity, high gas magma results in a Plinian (explosive) eruption. The gas pulverizes the magma into ash and may form lateral pyroclastic flows.
Yes. Composite volcanoes often have a high gas content in their magma, which is why they often erupt explosively.
A volcano erupts when gases build to an inescapable high pressure. The gas pushes magma and ash through the cone of the volcano causing an eruption.
high viscosity and dissolved gas
A volcano " vents " gas when pressure builds up
Gas is stored in the Magma chamber at the bottom of the volcano, along with the magma.
Volcanos produce a lot of gas, and not all volcanos have open holes on top. Some are closed, and as magma rises, air gets trapped.
depends if you are talking about a forced gas such as a high pressure nozzle blowing the gas out or diffusion of a gas into the air, the first depends on pressure, the second depends on heat
Molten rock and gas leave a volcano though a vent.
A volcano is made of solid rock.
Producer gas produces a mixed air which helps in producing high temperatures.