All three rock types could be formed in areas under the seas. Two types of rock are most likely to form on the seafloor, however. Sedimentary rock is formed on the seafloor where accumulations of sediments undergo lithification processes. Extrusive igneous rock can form on the seafloor when lava erupts on its surface.
The type of rocks formed when magma erupts from under the sea is an igneous rocks. Igneous rock is made from magma.
I think it's igneous rocks, because they can be known as 'fire rocks'.
Igneous rock
Extrusive igneous rocks
When a volcano erupts it releases liquid magma into the air and as it falls to the earth it cools down and becomes solid.
Rocks of igneous formation and magmatic origin.
The magma gets trapped in the layers of the volcano in a magma chamber. This chamber is typically located deep within the Earth's crust, below the volcano's vent. The thick and solidified rocks surrounding the chamber help contain the magma and prevent it from reaching the surface.
Usually the magma clogs causing major pressure causing the volcano to explode violently or some times movement in the earths crust
Extrusive igneous rocks
First, the magma breaks open rocks underneath the volcano. Then, it flows up through cracks of the volcano. After it is all the way to the top, the volcano erupts. Then the magma and lava flows outside the volcano.
When a volcano erupts it releases liquid magma into the air and as it falls to the earth it cools down and becomes solid.
rocks falling
A volcanic neck is the throat of a volcano and consists of a pipe like conduit filled with hypabyssal rocks. the volcanic Lave from the Magma Chamber comes out through the throat when the volcano erupts. :) hope this helped :)
Igneous rocks form because, magma cools under the ground, or magma erupts, then cools on the ground forming these rocks.
Rocks of igneous formation and magmatic origin.
Magma occurrs by rocks melting inside a volcano
ashes volcanic rocks molten lava
The magma gets trapped in the layers of the volcano in a magma chamber. This chamber is typically located deep within the Earth's crust, below the volcano's vent. The thick and solidified rocks surrounding the chamber help contain the magma and prevent it from reaching the surface.
Usually the magma clogs causing major pressure causing the volcano to explode violently or some times movement in the earths crust
The scientific reason for Mt. Vesuvius's eruption, is that pressure on the rocks the closest to the mantle increases when two continental plates collide and push against each other causing the ground to quake, and the rocks to melt and form magma. Then as the magma in the mantle increases the magma rises into the magma chambers. Then the pressure in the magma chambers increases, and it continues to build up until the volcano can't stand the pressure and the volcano erupts, and explodes.