Magma is the semi-molten rock layer on which the crust floats.
An intrusion.
Intrusive igeneus such as basalt
You're thinking of magma.
Molten rock material on Earth's surface is called lava. When under Earth's surface it's called magma
Igneous rocks are formed when molten magma cools and solidifies either beneath the Earth's surface (intrusive) or on the surface (extrusive). Intrusive igneous rocks are formed from magma that cools slowly underground, while extrusive igneous rocks are formed from lava that cools quickly on the surface.
This phenomenon is known as a subduction zone. It occurs when one tectonic plate is forced beneath another, leading to the melting of the descending plate and the formation of magma. This magma can then rise to the surface as volcanic activity.
Lava....when its under the earths crust its called magma.
When magma cools under Earth's surface, it is called "intrusive igneous rock" formation. The cooling process occurs slowly, allowing large crystals to form, which is characteristic of rocks like granite. This contrasts with "extrusive igneous rock," which forms when magma erupts onto the surface and cools quickly.
There are two known processes by which magma ceases to exist: by volcanic eruption, or by crystallization within the crust or mantle to form a pluton. In both cases the bulk of the magma eventually cools and forms igneous rocks.
mantle
Features formed from magma that solidified beneath the Earth's surface are described as intrusive or plutonic igneous rocks. These formations occur when magma cools slowly, allowing large crystals to develop, resulting in coarse-grained textures. Common examples include granite and diorite, which are characterized by their mineral composition and texture. Additionally, intrusive features can also include formations such as batholiths, sills, and stocks.
Metamorphic Rock...-A haa haaa ill follow everyone just like i do on Pretty Little Liars! answer: Magma when it comes to the surface its called lava.