Intrusive igneous rock.
No. Granite forms underground in the crust. If granitic magma reaches the surface and cools it forms a rock called rhyolite.
Igneous rock forms when melted rock (magma) from inside the Earth cools.
The same way any solid forms from a liquid - the liquid magma cools off and becomes solid. This usually happens when the magma comes to the cooler surface of the earth as lava, but it can occur very slowly inside of the earth as the magma gradually cools.
That depends on where it cools. Igneous rock forms from magma or lava (there's a difference!) cools and hardens. Extrusive igneous rock forms above the earth's crust, like when the lava from a volcanic eruption hardens. Intrusive igneous rock cools inside the earth when conditions change and the area around the magma cools allowing the magma to cool.
When magma cools, it forms igneous rock.
No. Pumice cools very rapidly above the surface. It is a glassy rock. Glass forms when lava cools too quickly for crystals to form.
a type of rock that forms when magma cools and hardens very slowly deep in earths crust...
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, it forms igneous rocks such as granite or diorite, which have large mineral crystals because they had time to grow as the magma solidified.
Pahoehoe.
Intrusive activity is when magma in the mantle or crust starts to cool and crystallize. Igneous rock forms from the crystallization.
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.
No. Granite forms underground in the crust. If granitic magma reaches the surface and cools it forms a rock called rhyolite.
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
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.
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.
because the molten rock cools in the water and forms a oceanic crust