Are generically called lavas but may be specifically basalts, ignimbrites, andesites phonolites etc.
i think the answer your looking for is igneous rock.....that is the type of rock you get after megma cools.....
Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.
Igneous rock forms when melted rock from inside the Earth cools and hardens. This process can happen either beneath the Earth's surface, forming intrusive igneous rock, or at the surface, forming extrusive igneous rock. Examples include granite, basalt, and obsidian.
Igneous rocks are formed when molten hot rock flows to the surface of the Earth and rapidly cools down. The crystals that form are rich in silicon and oxygen.
Igneous rocks are produced when melted rock or magma from inside the Earth cools and hardens on or below the Earth's surface. These rocks can be categorized as intrusive or extrusive, depending on where the cooling and hardening process occurs.
a Obsidion rock
i think the answer your looking for is igneous rock.....that is the type of rock you get after megma cools.....
a Obsidion rock
Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.
extrusive- when melted rock material coools on earths surface instursive-when the melt cools below earths surface
Igneous rock. Extrusive igneous rock forms at or near the surface, intrusive igneous rock forms below the surface.
It forms an igneous rock. If it is within the Earth, then it is an intrusive igneous rock (e.g. granite) and if it is erupted onto Earth's surface then it is an extrusive igneous rock (e.g. basalt).
Such rock is extrusive igneous rock.
An igneous intrusion.
Igneous rocks do form on the earths surface. A volcano erupts and the lava that comes out cools and hardens forming igneous rocks.
lava
when it cools undera lot of pressure underground it is an intrusive igneous. If it cools on the surface of the earth then it is an extrusive igneous.