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Magma is not all that abundant. The mantle itself is solid due to the pressure it is under. When magma comes in contact with solid rock, some of that rock may melt, but it takes a lot of heat to melt rock. Once it reaches the melting point, more energy is needed to actually melt it. Additionally, rock does not transfer heat easily. The sheer volume of the rock also keeps the entirety of it melting. It is like pouring a bucket of water on a glacier.
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∙ 10y ago
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When magma reaches the exterior of the Earths crust is becomes?
Lava
What causes magma to flow out of a weak spot in the earths crust?
Geothermal presure.
When magma hardens inside the earths crust it can form vertical what and horizontal sills?
Obsidian
Are The elements found in magma are quite different from those found in Earths crust?
true.. i think
Is it true that the elements found in magma are quite different from those found in earths crust?
Yes
What is the effect of actions of magma in the earths crust?
It is from the Volcano
What is magma that has escaped from the earths crust called?
Lava!
Magma that breack through the earths curst is called?
Once magma breaks through the earths crust it is called"lava"
What is melted rock on the earths is called?
Lava....when its under the earths crust its called magma.
What is it called when magma hardens beneath the earths surface?
crust
When magma reaches the exterior of the Earths crust is becomes?
Lava
What is the opening in earths crust where magma comes to the surface?
The correct answer is Volcanos
When magma hardens inside earths crust it can form vertical?
sills
What is formed as plates within earth bend and crack earths crust?
magma
What causes magma to flow out of a weak spot in the earths crust?
Geothermal presure.
How did pangaea split?
Earths magma moved under the crust and the continents split
What are some properties of magma?
Magma has a lot of different properties. it also means lava. It is in the mantlle if it is called magma, lava is when it is on the earths crust.
