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Lava is the mantle is called magma. Lava, referring to magma that is flowed out onto Earth's surface, only hardens when the temperature around it drops. This is because lava is very hot, and when the temperature drops, it cools and solidifies due to its thixotropic and shear thinning properties, just like clay.
Magma is actually kept in its liquid state because of the temperature of the mantle, which ranges from 500°C to 4,000°C. The magma itself in the mantle is approximately 700°C to 1300°C, which means that the temperature is not low enough for magma to harden. Magma is part of the convection process occurring inside the mantle. Since the mantle closer to the core is of higher temperature than when closer to the crust, there is a convection process where magma heats up from the hotter core side and rises to the cooler crust side and vice-versa. Thus, just like when you keep mixing clay, the moving magma in the mantle will not harden.
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What has to happen before rock from the earth's mantle become a new piece of crust?
It has to harden
How are Pillow Lava and Pahoehoe lava the same?
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
Why is lava and magma not a rock?
Lava and magma are not rocks because they are liquids and cant harden because they are to hot to harden and cant cool themselves down long enough to form a hard structure. Magma and lava is rock - it's just been superheated by the Earth's core.
What happens to magma and lava once they cool and harden?
It becomes igneous rocks>
What happens to lava when it hits earth's surface?
The magma inside a volcano will ooz out running down the sides. Eventualy the lava will harden into ignous rock.
Does the lava harden?
Actually, it does not. It is soft.
What does the lower mantle have in it?
lava
What does the mantle make?
Lava
What has to happen before rock from the earth's mantle become a new piece of crust?
It has to harden
What makes the earth's mantle so hot?
the earth's mantle is full of lava so the lava is what makes it so hot
What it the Mantle made of?
the mantle is made of hot lava with rocks and pee
How are Pillow Lava and Pahoehoe lava the same?
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
How do volcanoes make the lava?
they dont; the lava comes from the mantle in the earth
Dust sized particles of harden lava?
it is kaka shamucky
What happens to magma and lava when they coll and harden?
it turs to rock
What are the names of rocks that harden before they come out of the volcano and the name of rocks that harden after they come out of a volcano?
It is called Lava
How do volcanoes shape the Pacific Northwest?
volcanoes will erupt and let out lava then the lava will harden and that will be new land.
