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1. a decrease in pressure, which lowers the melting temperatures of materials; this occur at mid-ocean ridges.
2. an increase in pressure, which causes materials in the asthenosphere to melt; this often occurs at a hot spot.
3. an increase in the amount of water in the asthenosphere, which lowers the melting temperatures of materials; this often occurs at subduction boundaries.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThe Main Factors Involved In The Formation Of Magma Are Temperature, Pressure, Water Content, And Mineral Composition.
Wiki User
∙ 13y agoTemperature
Pressure
Compostition
Wiki User
∙ 11y agoTemperature
Pressure
Composition
Wiki User
∙ 10y agoThe four factors that affect magma are temperature, Pressure, Water Conent and mineral Composition
Wiki User
∙ 11y agoDepth, heat and pressure.
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What are the critical factors that affect cocoon formation?
Climate, silent and sanitary environment, and enough food for the worms are some critical factors that affect the cocoon formation.
What factors affect the texture of igneous rock?
the length of time the magma had to cool
What factors can affect the texture of an igneous rock?
The length of time the magma had to cool
What is the heat source for rock formation?
Magma.
3 factors that affect the formation of clouds?
Three factors that must be present for cloud formation are; hydroscopic nuclei, moisture, and cooling process. Amounts of the above affect cloud formation. Do you mean the affect of precipitation? Or does this answer your question? Furthermore, Precipitation will affect the mass of a cloud as well as evaporation and sublimation. Hope this helps.
What are the three factors affect the formation of magma?
Temperature Pressure Compostition
What does not affect the formation of Magma?
Star Wars Movies do not affect the formation of magma.
What three factors affect the formation of magma?
1. the coarse grained rock 2. slow cooling magma 3. fine grained rock
How does the pH of magma affect the formation of igneous rocks?
ybyg
Four factors involved in the formation of magma?
Four factors involved in the formation of magma include; 1. Temperature. 2. Depth. 3. Chemical composition. 4. Quantity of water in the melt.
What are the critical factors that affect cocoon formation?
Climate, silent and sanitary environment, and enough food for the worms are some critical factors that affect the cocoon formation.
What are the three factors that promote the formation of magma?
High temperatures, decreased pressure and the presence of volatiles.
Which of the following does not affect the formation of magma a.temperature b.pressure c.volume d.mineral composition?
c. volume
What factors affect the texture of igneous rock?
the length of time the magma had to cool
What factors can affect the texture of igneous rock?
The length of time the magma had to cool
What are the two important factors that affect the explosiveness of a volcanic eruption?
Pressure and magma
How do temperature pressure and fluid content affect the formation of magma?
The air affects magma. Once magma is released above ground, called lava, the air hardens it. While it is underground, the higher the temperature and pressure, the runnier the magma.
