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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.
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What is the earth magma?
it's lava but in it's liquid form. A common misconception between magma and lava is lava is solid and magma is liquid hot.
What does magma with high silica content form?
When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
What are the factors that might cause magma to form a laccolith instead of a sill?
the chemical and physical particles
What happens As magma rises it carves a tube-shaped structure called a .?
As magma rises, it carves a tube-shaped structure called a "magma conduit" or "volcanic conduit." This pathway allows the magma to move upward from the magma chamber beneath the Earth's surface towards the surface, where it can erupt as lava. The conduit can also help form various volcanic features, such as volcanoes or lava domes, depending on the composition and behavior of the magma. Over time, the solidified magma in the conduit can create a central vent or pipe structure within the volcano.
What is the only kind of rock that can form directly from magma?
By definition. A sedimentary rock is formed from sediments, chemical, organic, or clastic. A metamorphic rock has undergone a change in mineral alignment or mineral composition due to heat and/or pressure. An igneous rock forms from solidification of magma via cooling.
How does magma form geological features?
by magma
How are mineral formed by crystallization from magma?
As magma cools, elements combine to form minerals.
What has to happen to magma for glass to form?
The magma has to crystalize...
What is the plural of magma?
The noun magma has no plural form; magma is an uncountable noun, a word for a substance.
Where do intrusives rocks form?
They form underground from the cooling and solidification of magma.
How does magma from igneous rock?
magma cools to form igneous rock
Does granite form magma?
Yes, granite is formed from cooling magma.
How does magma form a volcano?
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Magma cools and solidifies to form what rocks?
igneous rocks
What is solid form of magma body?
When magma solidifies, it becomes igneous rock.
What causes magma to form at a convergant plate?
the mid ocean ridges cause the magma to form at a convergent plate boundary.
What causes magma to form at a convergent boundary?
the mid ocean ridges cause the magma to form at a convergent plate boundary.
