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There are a few reasons for this. First, the amount of lava on a volcano during an eruption is small compared to the volume of the volcano itself. For a large volcano the effect would be rather like puring a boucket of water on an iceberg. Second, in order to melt, the rock must first be greatly heated up as, compared to the lava, they are freezing cold. All of this heat must be lost by the lava, which cools as a result. In addtion, lava on the surface is also loosing heat to the air. Third, if you look at the temperatures, the lava is actually closer to solidifying than the rock is to melting. The largest mass of molten rock, called magma when it is underground, is usually stored in a magma chamber a few miles beneath the volcano. Some of the surrounding rock may melt and become part of the magma, but this usually does not spread too far as rock is a poor conductor of heat.
What else can I help you with?
What make a crater form volcano?
Probably from the earthquake that happened when the crater hit the earth. The lava rushes to the surface, melting the crater, and it forms a volcano.
What metal can stand against volcano boiling lava?
concrete and iron since they have a very high melting point.
What volcano has white lava?
There is no volcano that produces white lava naturally. Lava typically appears red, orange, or black due to the presence of various mineral impurities and the melting of rocks. However, artificial conditions can be created in laboratories to produce white lava as part of scientific experiments.
Does the process of melting form metamorphic rocks?
Yes, the cooling of lava from the volcano creates the process of metamorphism; in this case - the rock.
What are lava flows on a volcano?
A lava flow is where lava flows down the side of a volcano.
What is hot magma outside a volcano called?
Hot magma outside a volcano is called lava. Lava is molten rock that flows out of a volcano during an eruption.
Is lava in outside of a volcano?
Yes, lava is on the outside of a volcano. Magma is on the inside of a volcano.
What is molten material that a volcano vent?
The molten material that a volcano vents is called magma when it is still underground and lava when it reaches the surface. Magma is generated by the partial melting of rocks in the Earth's mantle, and its composition can vary depending on the type of volcano. When a volcano erupts, it releases lava, gases, and ash onto the Earth's surface.
Is lava magma?
yes. magma is the lava that is in the volcano and lava is the magma that is outside a volcano
What does lava erupts through?
If you mean 'how does lava release itself from the volcano', it erupts through the volcano's crater. But if you mean 'how does lava erupt from the volcano', then sorry, I have no answers to that.
What is the temperature of lava from a composite volcano?
The temperature varies widely, ranging from high temperatures of 1,800 to 2,200 degrees Fahrenheit for basaltic lava to as low as 1200 degrees of Rhyolitic lava. Ol Doinyo Lengai, a composite volcano in Africa, erupts unique carbonatite lava with temperatures between 950 and 1100 degrees.
Does lava comes from a volcano?
A volcano is the opening in the crust through which lava comes forth.
