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Partial melting of rock produces a magma. When rock is heated (by the heat emanating from the Earth's core) it DOES NOT all melt at the same time.
In the same way that adding antifreeze to water prevent it freezing, certain mixtures of elements (from the minerals making the rock) melt out first to form a liquid.
These melts flow together from between the mineral grains to make the magma.
This process of partial melting produces PARTICULAR magma compositions depending on the make up of the source rocks which is why magmas have definite chemistries and are different in different places.
Basalts are made from partial melts of the upper mantle, Andesites are magmas made from partial melts of the crust etc.
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What does not affect the formation of Magma?
Star Wars Movies do not affect the formation of magma.
What is the relationship with water sun wind and land in the formation of a volcano?
None. The processes that forms volcanoes occurs deep within the Earth. The upwelling of magma (lava) is unaffected by surface phenomenon.
What processes resulted in the formation of the Okavango delta?
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Tephra Type. (:
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The four processes that result in the formation of minerals are: 1. Crystallization from Magma 2. Precipitation 3. Pressure and Temperature 4. Hydrothermal Solutions
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Star Wars Movies do not affect the formation of magma.
Which would mostly likely occur during the formation of igneous rock?
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Magma.
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The 5 processes of word formation are compound, derivation, invention, echoism, and clipping.
Describe the processes that have led to the formation of the soufriere volcanoes?
Describe the processes that have led to the formation of the Soufriere Hills volcano?
What processes resulted in the formation of the Okavango delta?
The upwarping and the down warping are the processes resulted in the formation of the Okavango Delta
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the role of asthenosphere in magma generetion
What rock cycle process is the opposite of crystallization of magma-?
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What does NOT play a role in magma formation?
Tephra Type. (:
