The eruption of volcanoes. If the lava flow is still underground and not exposed to air, its called Magma. Once it reaches the surface and encounters air, its called lava. Essentially, Magma and Lava are the same, there's no chemical difference other than its interaction to air.
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∙ 15y agoThe evidence that the Earth's mantle contains magma comes from volcanic eruptions where magma from the mantle rises to the surface. Additionally, seismic studies have shown the presence of partially molten rock in the upper mantle. The study of mantle-derived rocks like peridotite also provides evidence of magma generation within the mantle.
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∙ 15y agoThe Earth's mantle is vastly more solid than molten due to large pressures exerted on the rocks from all sides. Molten material in the mantle can occur at hot spots and mid-ocean ridges where decompression of the rising rock allows melt, and at subduction zones where cold, wet crustal material may cause a partial melt of the surrounding mantle rock.
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∙ 13y agoMicro seismicity, an increase or change in the chemical composition of volcanic gasses and potentially deformation or bulging of the Earth's surface may all be evidence of magma being fed into a volcanic reservoir.
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∙ 12y agoMagma erupts through the crust at fissures
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∙ 14y agoThe best evidence of crustal movement is provided by marine fossils found on a mountaintop.
Mantle is part of the Earth's lithosphere.
The melted mineral material in the mantle is called magma.
The area in the Earth's mantle that is hot enough to melt rock into magma is called the asthenosphere. Magma created in the asthenosphere can rise to the surface through volcanic vents, creating volcanoes. The heat in the asthenosphere is generated by the radioactive decay of elements within the Earth.
Melted material that rises from the mantle is called magma. Once magma reaches the Earth's surface, it is then referred to as lava.
The process of continuous heating and cooling of magma in the mantle is known as magma convection. This movement of molten rock helps distribute heat and promote mixing within the mantle, influencing volcanic activity and plate tectonics.
Mantle is part of the Earth's lithosphere.
plate tectonic and magma
magma.
heat and pressure
yes
Valcano
If it were molten, it would be called magma.
The Mantle. It is the largest and thickest layer in the earth. But this answer might not be actually true. Because the earth has all these layers and the mass is added up. -By Olivia Agbo A 12 year old. Thank you for your support.
That is correct. When magma travels from the mantle to the crust and reaches the surface, that is a volcano.
in the mantle above the slab
In small amounts, yes. Magma contains some hydrogen from water that has been subducted into the mantle.
the mantle