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1) Residual heat of formation. The extreme thermal energy that is found within the core of the earth is due in part to the way the planet formed. The early earth was completely molten when protoplanetary materials were super heated as they aggregated. And the heat of formation was added to by the impact of lots of large objects, which added lots of heat energy. Some of that heat energy remains in the core. 2) Radioactive decay. Radioactive elements were carried to the core of the earth with iron when the earth differentiated early in its history. These elements are decaying and releasing heat as they do so. This heat keeps the iron core molten and is responsible for providing the energy to melt the rocks and form volcanoes.
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∙ 15y ago
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∙ 12y agoHeat. Molten rock can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
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∙ 16y agoa. a rise in temperature e. a drop in pressure I believe it is heat and pressure
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∙ 11y agoMagma is liquefied rock within the earth. Lava is liquefied rock that has exited the earth's interior through a crack or fissure in the crust.
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∙ 11y agoThe Earth's Core
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∙ 11y agosexy and i know it
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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.
How metamorphosed rock is formed?
When a tectonic plate in a subduction zone, goes underneath another tectonic plate, the magma in the Earth's core causes the plate to break up and melt. This melted rock becomes magma, and when it pushes through the Earth's crust to create a volcanic eruption, the magma cools and becomes rock. This rock is Metamorphic rock.
What causes the rock in the mantle at divergent boundaries to melt?
The crust stretches and gets thinner so the pressure decreases on the mantle rocks below this causes part of the mantle to melt
What type of rock that reaches the earth's surface is called lava?
igneous rock-molten rock inside earth
What is body of rock formed by molten rock inside earth called?
The molten rock that is found inside the earth is usually simply called magma. It becomes lava after it leaves the volcano at the surface of the earth.
How can metamorphic rock be changed to igneous rock?
The rock actually has to go back into the earth and melt into magma. When this magma cools off it'll emerge as either intrusive (cooled inside of the Earth) or extrusive (cooled "outside" of the Earth) igneous rock.
When rock in earth's mantle melt what does it become?
Melted rock in the Earth's mantle is called magma.
Name three things that can cause rock to melt and form magma?
The main cause for a rock to melt and form magma is constant pressure and heat in the mantel
How are dome mountain?
Dome mountains are formed exactly the same way as VolcanoesThe inside of the earth can get so hot that rock slowly melt and become magma. Magma is much lighter then the hard solid rock that surrounds it, this causes it to rise and collect in chambers in the earth. though the magma cools before a volcano is formed. (hope this helps)
What rocks on earth were created by enough heat to completely melt the material making up the rock?
Igneous rock is formed from solidified melt.
Rock can melt at a depth of about what degree below Earth's surface?
100km
Molten liquid rock inside Earth's mantle is called .?
Molten liquid rock inside Earth's mantle is called
When forces inside the earth push rock down towards the mantle what type of rock forms?
forces inside earth
How metamorphosed rock is formed?
When a tectonic plate in a subduction zone, goes underneath another tectonic plate, the magma in the Earth's core causes the plate to break up and melt. This melted rock becomes magma, and when it pushes through the Earth's crust to create a volcanic eruption, the magma cools and becomes rock. This rock is Metamorphic rock.
What causes rock to break by freezing water inside it's cracks?
When water freezes it expands. This process creates pressure inside of the rock, which causes it to burst open from the inside.
When granite melt within earth what extrusive rock forms?
Dn igneous rock of course stupid
What causes the rock in the mantle at divergent boundaries to melt?
The crust stretches and gets thinner so the pressure decreases on the mantle rocks below this causes part of the mantle to melt
