Pillow lava is the lava structure typically formed when lava emerges from an underwater volcanic vent or subglacial volcano or a lava flow enters the ocean. However, pillow lava can also form when lava is erupted beneath thick glacial ice. The viscous lava gains a solid crust on contact with the water, and this crust cracks and oozes additional large blobs or "pillows" as more lava emerges from the advancing flow. Since water covers the majority of Earth's surface and most volcanoes are situated near or under bodies of water, pillow lava is very common.
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Magma is typically found at varying depths below the Earth's surface, ranging from a few kilometers to over 100 kilometers deep. The depth at which magma is located depends on factors such as tectonic activity, heat flow, and local geologic conditions.
Molten rock underground is called magma rather than lava. Unless you live on or near a volcano, chances are there is no magma beneath your feet. Temperatures in Earth's mantle are hot enough to melt rock if it were at the surface, but rock in the mantle is kept in a solid or semi-solid state by the enormous pressure exerted by the rock above it. This semi-solid rock is found 50 to 125 miles beneath the surface depending on the geology of the region.
lava isn't below the surface at all. lava is the stuff on top of the surface. in the surface it is called MAGMA, magma is all the way down in the inside layer of the earth, the core
The lithosphere, which includes both the crust and the uppermost mantle, goes all the way to the surface.
It starts appearing just after the upper mantle, and continues down to the core.
Melted rock below Earth's surface is known as magma. Magma forms when rocks in the Earth's mantle melt due to high temperatures and pressure. As magma rises towards the surface, it can eventually erupt as lava through a volcano.
i think the answer your looking for is igneous rock.....that is the type of rock you get after megma cools.....
Intrusive igneous rocks.
Mountains formed by magma that reaches the Earth's surface are called volcanoes.
When magma comes up to Earth's surface and hardens, it is called lava.