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What causes the volcanoes to erupt on Venus'?
No one know if there are active volcanoes on Venus. There are old ones. There is no evidence of plate motion on Venus.
Do hot spot volcanoes tend to erupt more explosively than other volcanoes?
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain. The more explosive volcanoes are those with a blocked magma chamber that builds pressure under a solid surface. Hotspot volcanoes tend to be less explosive because most are on the seafloor.
Why do you think that earthquakes and volcanoes occur in these main geologically active zones?
As the old crust enters the mantle it brings volatiles such as water with it. This lowers the melting point of the rock around it.This melted material rises to the earths surface under pressure along with gases and may erupt in a volcano.
Are earthquakes and volcanoes related?
Earthquakes can cause a volcano to erupt.
What plate movement causes volcanoes?
The plate movement that causes volcanoes to erupt is called plate tectonics. Big rocky plates separate, make collisions and slide past each other that creates earthquakes, volcanic eruptions and also creates mountains.
How do volcanoes takes place?
Volcanoes are essentially holes in the earths surface through which magma and lava can erupt. when pressure builds up below the earths crust, magma is then forced violently out of the volcanoes.
Where are most of earths volcanoes hidden?
They are mostly hidden underwater because nothing has yet made them erupt and come to the surface.
What is the name for magma that has erupted?
Lava. Note: Magma cant erupt, volcanoes do. Magma is just the word for molten rock beneath the earths surface, lava is for molten rock above the earths surface.
How do volcanoes form a hole at the top?
When Volcanoes erupt the surface is melted by the lava
Do volcanoes erupt in places where two of the earths plates meet?
yes sometimes
What can erupt to bring a lava flow to earths surface?
magma
What makes an earthquake to create a volcano that make it erupt?
the moving of the tectonic plates which makes the earths surface unstable which then causes earthquakes and volcanic eruptions
Do volcanoes erupt when earths plates move?
Well, when earths plates move away from each other that's when it happens but move well then NO!
What are facts about strato volcanoes?
Did you know that composite volcanoes make up 60% of the Earths volcanoes. Composite volcanoes don't always have to erupt from the top. They can have many magma chambers and can erupt from the sides. They can be made of basalt, rhyolite and/or andesite. They erupt both ash and lava. The lava is very thick. When the time comes for the volcano to erupt they start to become very quiet. (Sneaky eh?)
How do diamonds get to the surface?
Via rising molten magma or by mining.
How does volcanoes from and erupt?
Volcanoes erupt when pressure from inside the earth pushes magma through a weakness in the earth's surface. As more and more magma erupts, the volcano is formed and grows.
Volcanoes on Io erupt fountains of what?
Volcanoes on Io erupt fountains of sulfur and silicate rock. The sulfur and silicate rock form lava flows on the surface of the moon.
