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Which two processes commonly generate magma?
decompression melting and wet melting (the addition of volatiles) :)
What is decompression melting how it relates to Earths internal convection?
Decompression melting occurs when a decrease in pressure on a mantle rock causes it to melt without an increase in temperature. This process is related to Earth's internal convection because rising mantle material undergoes decompression as it moves towards the surface, leading to melting and the formation of magma chambers.
Why would decompression of mantle peridotite cause the production of mafic magma?
Melting points vary with pressure. In nearly all substances the melting point increases with increasing pressure. The peridotite in the mantle is extremely hot and under immense pressure. When it is decompressed some melting occurs. The composition is not uniform and some minerals have lower melting points than others. The mafic minerals will be able to melt while the ultramafic mineralls generally will not.
What is the primary process involved in the formation of magma at a rift?
Decompression melting of extremely hot mantle rock as it rises toward the surface.
Is the main mechanism for melting decompression melting of ultramafic mantle rock?
Yes, the main mechanism for melting in decompression melting involves ultramafic mantle rock. As tectonic plates move apart, the pressure on the mantle rock decreases, allowing it to melt at higher temperatures. This process is primarily responsible for the generation of magma at mid-ocean ridges and other divergent boundaries. The resulting melt is typically basaltic in composition, originating from the ultramafic materials found in the upper mantle.
Which two processes commonly generate magma?
decompression melting and wet melting (the addition of volatiles) :)
What is decompression melting how it relates to Earths internal convection?
Decompression melting occurs when a decrease in pressure on a mantle rock causes it to melt without an increase in temperature. This process is related to Earth's internal convection because rising mantle material undergoes decompression as it moves towards the surface, leading to melting and the formation of magma chambers.
When melting occur and what is it called?
Melting occur at the melting point. The solid is transformed in a liquid.
When does the melting point occur?
Melting occur when a solid starts to be a liquid.
What causes melting of material under divergent plate boundaries Is it melting of rock recompression of rock freezing of rock or decompression of rock?
Melting of material under divergent plate boundaries is primarily caused by decompression of rock as tectonic plates move apart, reducing pressure on the underlying mantle and allowing rock to melt. This process creates magma that rises to the surface, forming new crust along the mid-ocean ridges.
What can be expected to occur as climate change continues on earth?
the earth's temperature will continue to rise which will increase the amount of sea ice that is melting. This will cause coastal flooding
Why would decompression of mantle peridotite cause the production of mafic magma?
Melting points vary with pressure. In nearly all substances the melting point increases with increasing pressure. The peridotite in the mantle is extremely hot and under immense pressure. When it is decompressed some melting occurs. The composition is not uniform and some minerals have lower melting points than others. The mafic minerals will be able to melt while the ultramafic mineralls generally will not.
Higher melting point than expected?
It is indeed possible for a substance to have a higher melting point than expected. This normally happens when the substance is impure.
What is the primary process involved in the formation of magma at a rift?
Decompression melting of extremely hot mantle rock as it rises toward the surface.
How does magma form?
Magma 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.
Explain how scientist tink most magma is formed?
Magma is 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 mantel rock.
What cause inside the earth to melt?
Heat. 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.
