cool temps
Igneous rock is produced by the cooling and solidification of molten rock. This process can occur both beneath the Earth's surface, forming intrusive igneous rocks, and at the surface, forming extrusive igneous rocks.
Some of the most important rock types in geology are Igneous Rock & Metamorphic Rock.
Igneous rock such as granite and basalt can melt under high temperatures when forming. This molten rock, or magma, can then cool and solidify to form igneous rocks.
When volcanoes erupt, the lava comes out and cools. After cooling, it hardens, forming igneous rock.
You can see basalt rock forming in Pu'u 'O'o crater. Basalt is an igneous rock that forms from the rapid cooling of lava.
Igneous rock is rock that formed from molten material. Volcanoes erupt lava and pyroclastic material, which forms extrusive igneous rock. Magma can solidify with in a volcano, forming intrusive igneous rock.
Before a rock can become an igneous rock, it must undergo melting to transform from solid rock into molten magma or lava. Once this molten material cools and solidifies, either beneath the Earth's surface (forming intrusive igneous rocks) or on the surface following a volcanic eruption (forming extrusive igneous rocks), it becomes igneous rock.
No igneous is formed from deep in the earth its starts from magma and as it pushes towards the earths surface it starts to cool therefore forming an igneous rock.
Basalt is the most common extrusive igneous rock.
The kind of rock you see forming in Puu Oo crater is extrusive igneous. This type of rock is formed by lava.
Igneous rock is formed from melted minerals that have solidified and cooled. This process can occur either beneath the Earth's surface, forming intrusive igneous rocks, or on the surface, leading to extrusive igneous rocks.
Igneous rock is by far the most common rock of the crust.