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Increased temperatures and or decreased pressures.

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Related Questions

When molten rocks cools what rocks form?

igneous rocks


What happenes during each method to form intrusive igneous rocks?

Igneous rocks are formed under high heat conditions. Intrusive igneous rocks are formed by the crystallization of magma in the Earth's crust.


Can metamorphic rocks can form from igneous but not from sedimentary rocks?

Metamorphic rocks can form from both igneous and sedimentary rocks


Can Metamorphic rocks can form from igneous but not from sedimentary rocks.?

Metamorphic rocks can form from both igneous and sedimentary rocks


What are igneous rocks that form on earth surface?

igneous rocks that form on earth's surface


How does an igneous rock change to metamorphic?

Meta-igneous. Metamorphism of igneous rocks can form a wide range of metamorphic rocks, depending on the mineralogy of the igneous protolith and the P-T conditions of the metamorphism.


What are igneous rocks that form over the surface?

Rhyolititcen rocks.


Magma cools and solidifies to form what rocks?

igneous rocks


Does sedimentary rock form igneous rock?

Yes it can form an igneous rocks as because of pressure it may melt and form into igneous rocks.


Which igneous rocks form below earth's surface?

Igneous rocks that form below the Earth's surface are called intrusive igneous rocks. Examples include granite, diorite, and gabbro. These rocks cool and solidify slowly, allowing large crystals to form.


What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?

Igneous rocks are formed by the solidification of molten materials.


What rocks form from melted rocks?

Igneous rocks.