If the gases separate rapidly and cannot escape immediately, they can build up pressure greater than that of the overlying rock. When this happens, they break the rock suddenly as a violent explosion occurs sending a plume of gas and ash upwards to heights as great as 20 miles.
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If the gas cannot escape, such as when the magma solidifies underground, then the gasses become part of the minerals within the igneous rock. Since the main gas in most magma is water vapor, this effect will manifest mostly as hydrous minerals such as amphibole and mica.
The crystal and gas content and temperature of a magma help determine a volcano's eruption style. • Crystals in magma make it more viscous, so magma with a high crystal content is more likely to explode than flow. • Gases create explosions if they cannot easily escape from viscous magma, but they can also be released without explosions (or with only minor ones) from fluid magma. • High-temperature magmas usually erupt effusively, while low-temperature magmas cannot flow easily and are more likely to erupt explosively.
Effusive eruptions occur when hot basalt magmas reach the surface allowing gases to escape easily as the magma erupts. Explosive eruptions occur where cooler, more viscous magmas reach the surface. The gases cannot escape as easily, so pressure builds up until the gasses violently blast out rock and lava.
no because the animoulisous allows the temioplaniting to happen in the guganilanic which the allows the magma to escape through the yimanotimyhuk
yes
If the gas cannot escape, such as when the magma solidifies underground, then the gasses become part of the minerals within the igneous rock. Since the main gas in most magma is water vapor, this effect will manifest mostly as hydrous minerals such as amphibole and mica.
The crystal and gas content and temperature of a magma help determine a volcano's eruption style. • Crystals in magma make it more viscous, so magma with a high crystal content is more likely to explode than flow. • Gases create explosions if they cannot easily escape from viscous magma, but they can also be released without explosions (or with only minor ones) from fluid magma. • High-temperature magmas usually erupt effusively, while low-temperature magmas cannot flow easily and are more likely to erupt explosively.
Effusive eruptions occur when hot basalt magmas reach the surface allowing gases to escape easily as the magma erupts. Explosive eruptions occur where cooler, more viscous magmas reach the surface. The gases cannot escape as easily, so pressure builds up until the gasses violently blast out rock and lava.
The explosive force of an explosive eruption comes from gasses trapped in the magma. Runny magma does not hold gasses very well, and so those gasses escape before the magma erupts. The runny magma can also easily flow to the surface without getting stuck and having to be blown out, unlike thicker types of magma.
no because the animoulisous allows the temioplaniting to happen in the guganilanic which the allows the magma to escape through the yimanotimyhuk
yes
At a constructive plate boundary two plates move apart. As they move apart the magma from the magma chamber flows up to fill the gap. This causes a volcano. However, as the magma can escape easily it flows down the volcano with only a little bit of force. So it has a gentle erupt.
This is because silica-rich magma is thicker. The thicker the magma, the chance for the dissolved gas in there to escape is less likely. This causes an explosion. When the gases do escape, they cause an even bigger explosion
The viscosity of magma affects whether or not magma flows away or piles up during an eruption. Viscosity, along with volatiles (dissolved gases) and volume determine whether you have a peaceful eruption or a very violent one.
magma that is low in silica and flows easily
Lava.
It depends on the texture of the magma, if it is thick then it won't let the gases escape, and if it is liquidy then the gases will escape resulting in a nonexplosive eruption. If the magma is high in silica and water then it will be thick If the magma is low or has no silica or water then it will be liquidy. - Negehna 6th Grade