It is not. It is forced up through the Earths mantel and then through the volcano. The volcano itself is just solidified magma (called lava as it exudes from the volcano).
Volcanoes store the lava in a place underground and it is called the magma chamber.
deep down the earth it is so hot that makes the rocks melt into a liquid and when the surface is weak the molten rock called lava forces its way through.
In Chambers
Magma is not an eruption. Magma is a mixture of molten minerals and dissolved gas that is underground. All volcanic eruptions, apart from phreatic eruptions, involve magma.
Before an eruption, magma moves into the area beneath the volcano and collects in a magma chamber, or reservoir. As it comes closer to the surface, the magma releases gases. These events can offer valuable clues about the likelihood of an eruption.
Before an eruption, magma moves into the area beneath the volcano and collects in a magma chamber, or reservoir. As it comes closer to the surface, the magma releases gases. These events can offer valuable clues about the likelihood of an eruption.
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.
Lava is magma that has reached the surface of the earth in an eruption. When this cools down, it will form igneous rocks.
magma is lava that has not been exposed to the air before eruption.
A Magma Chamber is a space (that can change size) at a depth below a volcano in which magma can accumulate prior to an eruption. A volcanic vent is a conduit connecting the magma chamber to the surface. It is though this that the magma flows during an eruption.
The earthquakes are caused by the movement of magma underground and the breaking of rocks by that magma.
They're called phenocrysts, allowed to slowly cool in magma before eruption of the magma.
The composition of the magma affects how explosive a volcanic eruption will be.
No, it is called magma before eruption and lava afterwards.
magma falls from underground to form an opening in the volcano
If the magma is more viscous, the eruption is stronger.
Magma is not an eruption. Magma is a mixture of molten minerals and dissolved gas that is underground. All volcanic eruptions, apart from phreatic eruptions, involve magma.
Before an eruption, magma moves into the area beneath the volcano and collects in a magma chamber, or reservoir. As it comes closer to the surface, the magma releases gases. These events can offer valuable clues about the likelihood of an eruption.
Before an eruption, magma moves into the area beneath the volcano and collects in a magma chamber, or reservoir. As it comes closer to the surface, the magma releases gases. These events can offer valuable clues about the likelihood of an eruption.
If the composition of the magma is high in silica, the eruption will be explosive. The Eruption of Mt. St. Helens was an explosive eruption. If the composition of the magma is low in silica, it will produce a quiet eruption. The eruption(s) of Mt. Kilauea are quiet eruptions.