0
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.
Wiki User
∙ 15y ago
Wiki User
∙ 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.
Wiki User
∙ 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.
Wiki User
∙ 12y agoMagma erupts through the crust at fissures
Wiki User
∙ 14y agoThe best evidence of crustal movement is provided by marine fossils found on a mountaintop.
Add your answer:
Earn +20 pts
Which of the following is part of the Earths lithosphere SoilMagma None of these Mantle, magma, and soil Mantle?
magma
Area in the Earth's mantle hot enough to melt rock into magma and create volcanoes?
All of the Earth's mantle is hot. And while some geologists believe that there are Mantle plumes (or hot spots) current evidence seems to support a view that mantle plumes do not exist. What causes magma to rise up from the lower crust and mantle is the convection of the mantle and therefore the places where most heat (and magma) is coming up to the surface is along the mid oceanic ridges.
What part of the earth is made up of solid rock?
what part of the earths contains the rocks
Which layers of the earth contains rocks?
The lithosphere is where the brittle rock resides. Most of the rock of the mantle is ductile, yet solid.
Are there convection currents in the molten part of the earths interior?
Yes there are! That's why the plates move! It's caused by convection circulating the magma in the mantle creating currents!
Which of the following is part of the Earths lithosphere SoilMagma None of these Mantle, magma, and soil Mantle?
magma
What is the rock of earths mantle?
plate tectonic and magma
When rocks return to earths mantle to earths mantle they can eventually melt and become magma. and are the main factors that control this change.?
heat and pressure
is it true magma forms in the deeper regions of earths mantle?
yes
What is the opening on earths surface where magma from the mantle rises and flows out?
Valcano
What is a molten rock from earths mantle?
If it were molten, it would be called magma.
Does a volcano form when magma reaches earths surface?
That is correct. When magma travels from the mantle to the crust and reaches the surface, that is a volcano.
What layers makes up most earths mass?
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.
When solid rock in the earths mantle melts it forms a liquid rock known as?
Magma
Where does magma form before it moves toward the earths surface?
in the mantle above the slab
Is hydrogen in magma?
In small amounts, yes. Magma contains some hydrogen from water that has been subducted into the mantle.
Which layer of earth is the source of molten rock called magma that sometimes rises to earths surface?
the mantle
