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Intrusive igneous rock.

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Is pumice a rock that cooled slowly inside Earth's crust?

No. Pumice cools very rapidly above the surface. It is a glassy rock. Glass forms when lava cools too quickly for crystals to form.


What do ingeous rocks form from?

a type of rock that forms when magma cools and hardens very slowly deep in earths crust...


What forms in earths crust when molten material reaches the surface?

When molten material reaches the surface of the Earth, it can solidify into different forms depending on the speed of cooling. If it cools quickly, it forms extrusive igneous rocks like basalt. If it cools slowly underground, it forms intrusive igneous rocks like granite.


When magma cools slowly what is the rock that forms?

When magma cools slowly, it forms igneous rocks such as granite or diorite, which have large mineral crystals because they had time to grow as the magma solidified.


When lava cools rapidly a crust forms on the surface of the flow If the low continues the crust wrinkles and forms volcanic rock known as what?

Pahoehoe.


What is intrusive?

Intrusive activity is when magma in the mantle or crust starts to cool and crystallize. Igneous rock forms from the crystallization.


Is andesite intusive?

Andesite is a type of igneous rock that can form both intrusively (inside the Earth's crust) and extrusively (on the Earth's surface). When andesite forms intrusively, it typically cools slowly and can create large crystals.


Does granite form on top of the crust?

No. Granite forms underground in the crust. If granitic magma reaches the surface and cools it forms a rock called rhyolite.


Write the difference between extrusive and intrusive igneous rocks?

igneous Extrusive is cool on the outside of the crust and cools quickly before crystal forms igneous Intrusive is cool on the inside of the crust and cools slowly and allowing crystal to form


Does obisdan from slowly or quickly?

Obsidian forms slowly over millions of years as molten rock cools and solidifies deep within the Earth's crust. Its formation is a result of the slow cooling of lava that leads to the development of a glass-like texture.


Why are the names intrusive and extrusive appropriate for the two types of igneous rocks?

The names intrusive and extrusive are appropriate because they describe where the rocks form. Intrusive rocks form inside the Earth's crust from magma that cools slowly, resulting in a coarse texture. Extrusive rocks form on the Earth's surface from lava that cools quickly, resulting in a fine texture.


Is a new ocean crust formed at a divergent boundary?

because the molten rock cools in the water and forms a oceanic crust