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Mantle rock, usually fed by subducting crusts at destructive plate boundaries, melt under the heat, creating magma (or igneous melt). This magma is usually less dense than the surrounding (country) rock and so rises to or near the surface, forming igneous rocks in two ways:
1) The rock does not reach the surface, but cools and crystallises inside the Earth, creating INTRUSIVE igneous rocks. These usually have large crystals as they cool more slowly due to the hot surrounding temperatures.
2) The rock reaches the surface via volcanic or fissure eruptions as lava, and cools and crystallises very quickly on the earth's surface forming EXTRUSIVE igneous rocks. These have fine crystals due to the quick cooling time and colder surrounding temperatures.
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∙ 10y ago
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When rock in earth's mantle melt what does it become?
Melted rock in the Earth's mantle is called magma.
Is solid rock located deep in the mantle called magma?
No. Magma is melted rock. The rock deep in the mantle is almost entirely solid.
What is the melted material beneath the Earth's surface?
This material is most often referred to as magma.
Granite that has formed from melted rock inside Earth is called?
magma
Some crystals are formed from hot melted rock called?
magma
Melted material that rises from the mantle is called?
magma
What is the melted mineral material in the mantle called?
Magma.
When rock in earth's mantle melt what does it become?
Melted rock in the Earth's mantle is called magma.
Is solid rock located deep in the mantle called magma?
No. Magma is melted rock. The rock deep in the mantle is almost entirely solid.
What provides the mechanism by which mantle rocks melt and magma is produced?
Temperature and pressure lead to the creation of magma, which is composed of melted rocks. Magma is an extremely hot liquid substance, with temperatures ranging up to 2400 °F.
What is the melted material beneath the Earth's surface?
This material is most often referred to as magma.
What is the new oceanic crust formed by?
Magma leaking in from the mantle.
What is the mantle and crust made up of?
Nearly all of the mantle and crust are made up of rock, and in the case of the mantle, a small percentage of magma (melted rock).
Granite that has formed from melted rock inside Earth is called?
magma
Some crystals are formed from hot melted rock called?
magma
Whats a pool of magma called?
Magma is melted rock, which comes from the Earth's mantle, which is the layer immediately below the crust.
Is diamond more durable after being melted and cooled?
Temperature changes does not affect diamonds, since they are good conductors of heat, and that they were naturally formed on the Earth's mantle - which consists of magma and other hot substance.
