All rock types, but mostly igneous rocks.
igneous rocks
igneous rock-molten rock inside earth
The type of rock that forms deepest inside Earth is known as igneous rock. This type of rock is created from the solidification of magma deep within the Earth's crust or mantle. Examples of igneous rocks that form deep inside the Earth include granite and basalt.
This rock is likely a type of metamorphic rock called gneiss. Gneiss forms under high heat and pressure conditions deep within the Earth's crust. The alternating layers of dark and light colors are a result of the rock's minerals recrystallizing into bands.
Sedimentary Rock,
Rock cycle mean when one type of rock changes into another type under a great heat and preasure
forces inside earth
Igneous
'Igneous' means from fire. Igneous rocks come from the molten interior of the Earth. Volcanic outpourings are the most obvious type of such a rock. Granites and their ilk are another type, except they cooled under the Earth for a long time, and have had sufficient time to crystallize. For each of the types of volcanic rock, there is an equivalent granite, with similar chemical composition.
Most of the Earth's crust is made up of igneousrocks but much of igneous rock is under the surface and not seen. Most of the rocks you see, those exposed on the surface, are sedimentary rocks.
Sedimentary rock covers most of the Earth's surface. This type of rock forms from the accumulation of sediments like sand, mud, and organic material, and it can be found in layers all over the planet.
The type of rock that forms deepest inside the Earth is called igneous rock. This rock is formed when molten material from the Earth's mantle solidifies deep underground. It can later be exposed at the surface through processes like volcanic eruptions.