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Magma is molten rock that bubbles up along ocean ridges to form new crust. Another way that magma forms new crust is when it is expelled out of a volcano and becomes lava, which cools and hardens into crust.

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How does the pH of magma affect the formation of igneous rocks?

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What kind of rock forms when magma intrudes into other rocks?

Intrusive igneous rocks. These have large crystals because it is warmer underground, therefore it has more time to cool, therefore the crystals have more time to form and grow, thus large crystals.


What is magma in a sill which pushes up to form a rock dome called?

The magma in a sill that pushes up to form a dome-shaped rock structure is called laccolith. Laccoliths form when magma intrudes between layers of sedimentary rock and causes the overlying rocks to arch upwards, resulting in a dome-like structure.


Are rocks formed by lava or magma?

Magma


How does the composition of the magma affect the temperature which it solidifies?

Magma consists of molten rocks and metals. The composition can vary based on presence of water, metals with different melting points, and such.


Magma cools and solidifies to form what rocks?

igneous rocks


Rocks are formed when magma does what?

Rocks are formed when magma cools and solidifies either beneath the Earth's surface (intrusive igneous rocks) or on the surface (extrusive igneous rocks). As the molten magma cools, it crystallizes and hardens into solid rocks like granite or basalt.


What rocks are formed by magma?

Intrusive igneous rocks are formed by magma. Magma can also cause the contact metamorphism of rock that it is intruded into.


Rocks that form as a result of cooling magma?

Igneous rocks form as a result of cooling magma. As the magma cools and solidifies, it forms rocks such as granite, basalt, and obsidian. The size of the mineral crystals in the rock is determined by the rate of cooling.


Do sedimentary rocks melt and become magma?

No. It's the Metamorphic rocks that melt and become magma.


Rocks made by the cooling of magma are called?

Intrusive igneous rocks are formed by the cooling of magma.


How does magma form into ignous rocks?

igneous rocks are formed through the cooling and solidification of magma.