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What must happen first before magma rise to the surface?
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
Before molten rock reaches the surface it is called what?
Before lava reaches the surface it is called magma.
What is the name when magma reaches the surface?
Magma is liquid rock before it reaches the surface magma which reaches the surface is called lava.
What is the name for lava before it leaves the volcano?
its magma before it reaches earths surface. lava is when its at earths surface
What may happen to magma that does not reach earth surface?
It dries then if other magma goes in the same direction as the old magma it sometimes reheats it then it flows toward the surface
What is a geologic situation in which a magma does not form a lava?
Lava is simply magma that reaches the surface of the earth. If a magma flow never is emergent while it is still in liquid form, it cannot be termed lava. An example is a volcanic stock or a laccolith that remains beneath the surface entirely.
Is. magma is melt rock that has come to the surface?
No! First of all, magma is below the surface and it is molten material.
What would happen first in order for a new island to be created by volcanic eruption?
Magma must find its way toward the surface of the crust.
Why do eruptions happen?
Eruptions happen when pressure builds up beneath the Earth's surface, usually due to the movement of molten rock (magma) within the Earth's mantle. When this pressure becomes too great, the magma is forced to the surface, leading to an eruption. Volcanic eruptions can also be triggered by other factors, such as tectonic activity or the presence of gases within the magma.
What comes first in an eruption magma or lava?
Mountain comes first because the formation of a volcano mountain comes first then it will have a crater because the magma chamber is already full it needs to release the magma which want to go up to the crust
Does magma shoot from a volcano or lava?
Magma is lava before it actually reaches the surface of the Earth. So magma comes from a volcano, not lava.
Do Volcanic necks and dikes form when magma cools and hardens into rock after reaching the surface?
No, these features form when magma cools into rocks BEFORE reaching the surface.
