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Where is the largest volumes of magma extruded on the continents?
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∙ 12y ago
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What is it called when Magma that is extruded onto the surface either beneath water or air?
Magma that has come to the surface is then referred to as Lava.
How did pangaea split?
Earths magma moved under the crust and the continents split
Do the earth's continents move?
The continents are situated on top of tectonic plates which float on the Earth's magma under the crust. This means that the plates move about, which means yes, the continents will move but it will be very, VERY slow.
What is the largest of all igneous intrusions?
The largest of all igneous intrusions is called a batholith. Batholiths are formed by the massive invasion of hot magma into country rock.
What name is given to magma when it is extruded at earths surface?
Lava. The word lava is from the latin word labes:to slide/fall. As lava leaves the volcano,it's temperature can vary from 700 degrees C to 1,200 degrees C,and can be up to 1,000 times more viscous than water.
When does magma (molten rock) become lava?
When it is extruded onto the surface.
What is it called when Magma that is extruded onto the surface either beneath water or air?
Magma that has come to the surface is then referred to as Lava.
Where does magma cool?
Extruded magma (lava) can cool on the surface, or under water. Magma also cools underground, forming intrusive igneous rocks such as granite.
What type of magma is found on continents?
I think it is the continental magma.
When plates beneath the ocean move apart from one another what happens to the magma below?
Magma is extruded as lava at the mid-ocean ridges when they are pulled apart.
Is gabbro made from lava or magma?
Intrusive igneous rocks are made from magma. Magma that is extruded onto the Earth's surface is known as lava and forms extrusive igneous rocks.
Does magma equals lava?
Lava and magma are both substances produced by volcanoes. There is a difference between the two, however. Specifically, magma has not yet come out of a volcano, while lava is magma that has erupted out of the cone.
Is pre-erupted magma and erupted volumes of tephra are the same?
No because it expands
How can magma cause the plates that carry the continents to move apart?
magma is very hot so as it boils it moves the plates of the earth causing the continents to slowly move apart
What is the difference between igneous rocks and extrusive rocks?
Extrusive is a form of igneous rock - it's what you get when the magma is extruded or squeezed out onto the surface in the form of lava.
When silica-rich magma is extruded ash hot gases and larger fragments may be propelled from the vent at high speeds and produce which of the the following?
Pyroclastic Flows
How did pangaea split?
Earths magma moved under the crust and the continents split
