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coarse grained and porphyry rock

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12y ago

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How quick does extrusive igneous rocks cool?

Intrusive igneous rocks cool slowly. These types of rocks would be located underground having long period of time to cool.


Do intrusive rocks have large crystals because they cool quickly?

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


Do intrusive rocks cool quickly?

Intrusive rocks cool more slowly than extrusive rocks because they are formed beneath the Earth's surface. This slower cooling allows for larger mineral crystals to form within the rock.


What type of crystal gain that forms when molten rocks cool slowly?

Intrusive


Why do igneous rocks that cool from magma underground cool so slowly?

They are surrounded by hot rock and are insulated by the surrounding material. Rocks are poor conductors of heat.


Which kind of igneous rocks form when magma cool slowly?

intrusive igneous rock


What type of crystal grain forms when molten rocks cool slowly?

Quartz


Do metamorphic rocks cool slowly?

Most do, however some do not, for instance a pseudotachylyte cools quickly.


Why does basalt rocks cool slowly?

Basalt cools off quickly because it is formed under water.


Did these rocks cool relatively fast or slowly?

Since you have neglected to describe them or provide pictures, that cannot be determined.


Do rocks that cool slowly from magma contain more crystals?

Yes, rocks that cool slowly from magma have more time for crystals to grow, resulting in a coarse-grained texture with larger crystals. In contrast, rocks that cool rapidly have a fine-grained texture with smaller crystals due to the lack of time for crystal growth.


What are the different rates at which rocks cool?

Rocks cool at different rates due to how they were formed if they were formed intrusively or extrusively Examples of different igneous rocks that form differently is Granite and Gabbro form the same but different from Rhyolite.