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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.
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 a fissure eruptions occur on continents?
Fissure eruptions on continents occur when tectonic forces cause the Earth's crust to crack open and release magma. This magma can flow out of the fissure as lava, creating long lines of volcanic activity. Fissure eruptions can be more gradual and less explosive compared to central vent eruptions.
What makes up the bedrock under the continents and is made of magma which slowly cooled inside the earth?
The bedrock under the continents is made up of igneous rock known as granite, which forms from magma that cools slowly beneath the Earth's surface. Granite is a coarse-grained rock composed mainly of quartz, feldspar, and mica minerals, and is a common component of the continental crust.
What kind of rock make the continents?
The continents are primarily made up of granite and other felsic rocks. These rocks are formed through the cooling and solidification of molten magma deep within the Earth's crust. The continents are also composed of sedimentary and metamorphic rocks, which have undergone processes like compaction and recrystallization.
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.
When does magma (molten rock) become lava?
When it is extruded onto the surface.
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 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 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.
Magma extruded at low temperatures tends to be what?
Magma extruded at low temperatures tends to be more viscous and can lead to the formation of features such as thick lava flows, domes, and explosive volcanic eruptions. This increased viscosity is often due to higher silica content, which can trap gases and result in more explosive activity. Consequently, the resulting volcanic rock is typically rhyolitic or dacitic in composition.
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.
Largest underground magma formations are?
batholith
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.
Do gases escape from magma?
Yes. This is because as the magma moves towards the Earth's surface it is under a lower pressure so is able to maintain lesser volumes of dissolved gas. As such the extra gas exsolves and escapes from the magma.
