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Extrusive igenous rocks. The main types are:

Komatite/picrite (ultramafic)

Basalt (mafic)

Andesite (intermediate)

Rhyolite (felsic/silicic)

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Igneous rocks that cool quickly on earth surface are?

Igneous rocks that cool quickly on the Earth's surface are called extrusive or volcanic rocks. Examples include basalt, obsidian, and pumice. These rocks have fine-grained textures due to their rapid cooling.


What are Igneous rocks that cool quickly beneath Earth's crust called?

Igneous rocks that cool quickly beneath earth's crust are known as intrusive rocks. These rocks will form from magma which will cool and solidify quickly.


What is it called when igneous rocks cool quickly?

obsidian


Igneous rocks that cool quickly below earth surface are?

Igneous rocks that cool quickly below the Earth's surface are known as extrusive rocks or volcanic rocks. Examples include basalt, andesite, and rhyolite. These rocks typically have fine-grained textures due to rapid cooling.


What are igneous rocks that form above the earth called?

Igneous rocks that form above the earth's surface are called extrusive igneous rocks. These rocks cool and solidify quickly due to the rapid cooling environment of the Earth's surface, resulting in fine-grained textures. Examples include basalt and rhyolite.


Molten rocks that cool at the earths surface are known as?

Lava.


What are the charicteristics of igneous rocks?

Igneous rocks are nearly always composed of silicate minerals and have an interlocking crystalline structure. The size of the crystals depends on how quickly the rock has cooled. Igneous rocks that cool near or on the surface may also contain gas bubbles.


What are igneous rocks that form from magma that reaches the surface of the earth?

Igneous rocks that form from magma that reaches the surface of the Earth are called extrusive or volcanic rocks. Examples include basalt, andesite, and rhyolite. These rocks cool quickly and have fine-grained textures due to rapid solidification.


What are types of extrusive igneous rocks?

Extrusive igneous rocks are igneous rocks that form above earth's surface. They are usually fine-grained due to the rate in which they cool.


Where does magma cool?

Magma cools and solidifies either underground within the Earth's crust, forming intrusive igneous rocks like granite, or when it erupts onto the Earth's surface as lava and cools quickly, forming extrusive igneous rocks like basalt.


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.


Do intrusive rocks have large crystals because they cool quickly?

No. Intrusive igneous rocks have large crystals because they cool slowly.