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What causes volcanoes to erupt violently while others simply leak molten rock?
Wiki User
∙ 9y ago
There are two main factors factors: gas content and magma viscosity. All magma has some amount of gas dissolved in it. This gas is released when the magma is exposed to lower pressure near the surface. In magma with a high gas content the gas bubbles out of solution and expands explosively in the presence of low pressure. If the gas content is low it may only result in a bit of bubbling. Viscosity is the tendency of a liquid to resist flowing. For example, maple syrup is more viscous than water. Magma varies in viscosity depnding on its temperature and composition. Lower temperatures and higher silica content make a more viscous magma. More viscous magmas usually have a higher gas concentration. Additionally, in viscous magmas, the gas is less likely to escape ahead of the magma in the prelude to an eruption.
Wiki User
∙ 9y ago
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Why are volcanoes in the ring of fire more deadly than others?
In the ring of fire, there are more active plates and they move a lot and makes the volcanoes erupt violently and often. - Tyler <3 Hope this helps.
What kind of volcano erupts more violently than others?
Dormant volcanoes don't erupt at all. When volcanoes are dormant, are "asleep" and do not erupt for a while. actually yes dormant is asleep but they can erupt at any time your thinking extinct valcanos dont erupt
How are volcanoes caused?
Volcanoes are places on earth where molten rock (called magma) reaches the surface of the earth and comes out as lava. The heat melting the magma is that coming from the core of the planet. There are certain places on Earth where volcanoes are more prevalent than others, these places relate to the edges of the tectonic plates that cover the surface of the planet, where heat flow from the core is higher.
What drives plate tectonic?
Vivid reminders that our planet is geologically active, volcanic eruptions are generated by the same heat engine that drives Earth's plates. Volcanoes form at places where large quantities of heat escape at the surface-sometimes quite dramatically. Earth's volcanoes vary widely in size, form, and explosivity. Some erupt violently, others pour out rivers of lava. This diversity is largely related to their plate-tectonic environments.
What engine drives plate tectonics?
Vivid reminders that our planet is geologically active, volcanic eruptions are generated by the same heat engine that drives Earth's plates. Volcanoes form at places where large quantities of heat escape at the surface-sometimes quite dramatically. Earth's volcanoes vary widely in size, form, and explosivity. Some erupt violently, others pour out rivers of lava. This diversity is largely related to their plate-tectonic environments.
Why do some volcanoes explode more violently than others?
A real donkey is called a jack as in hell
Why are volcanoes in the ring of fire more deadly than others?
In the ring of fire, there are more active plates and they move a lot and makes the volcanoes erupt violently and often. - Tyler <3 Hope this helps.
What kind of volcano erupts more violently than others?
Dormant volcanoes don't erupt at all. When volcanoes are dormant, are "asleep" and do not erupt for a while. actually yes dormant is asleep but they can erupt at any time your thinking extinct valcanos dont erupt
How tectonic movement causes the effect of a volcano?
As plates move, they can create volcanoes in one of two ways. One is when in the deep ocean, where plates move apart, magma seeps up out of the from the gap left by the plates, and then cools. This is called sea floor spreading. The other is when the stress of plates push together melts the rock deep in the crust. It fills a chamber with molten rock (called a magma chamber). As the magma chamber grows and hot gases build up, pressure increases. Finally, the gases and magma break the surface and the volcano erupts. However, some volcanoes erupt more violently than others.
Why do some volcanoes lie dormant for thousands of years and others erupt every few years?
Some volcanoes lie over 'hot spots' in the Earth's mantle where molten material is continuously being produced and injected through the crust. Other types of volcanoes are produced from the subduction processes of tectonic plate collisions where magma pressure builds, erupts, then builds again in a cycle of sorts.
Are crystals formed by volcanoes?
Some are, not others.
Do deserts have volcanoes?
Yes, many deserts have volcanoes. Some are active, some are dormant and others extinct.
Are there any others?
There are volcanoes all over the planet.
How are volcanoes caused?
Volcanoes are places on earth where molten rock (called magma) reaches the surface of the earth and comes out as lava. The heat melting the magma is that coming from the core of the planet. There are certain places on Earth where volcanoes are more prevalent than others, these places relate to the edges of the tectonic plates that cover the surface of the planet, where heat flow from the core is higher.
Why do volcanos explode more violently than others?
A real donkey is called a jack as in hell
How do you use Volcano in a sentence?
A ring of volcanoes surrounds the northern Pacific Ocean, some of which are active and spew lava and others of which are dormant mountain peaks.
Are some volcanoes bigger than others?
yes some are
