No because it expands
No. First of all, heat is not a substance. Something cannot be made of heat. Igneous rock forms from lava, magma, or tephra that has colled. Magma is molten rock in the earth's interior. Lava is molten rock that has been erupted onto the surface by a volcano. Tephra is material that has been ejected into the air by a volcano.
Solid materials erupted from a volcano are known as pyroclastic materials. These include ash, rocks, and hardened lava fragments that can vary in size from tiny particles to large boulders. Pyroclastic materials are formed during explosive volcanic eruptions when magma is fragmented and violently expelled from the volcano.
It is erupted by magma. It has steep slopes.it has alt lava and ash.
Magma that is blasted into the air and hardens is called volcanic ash or tephra. When magma is explosively erupted, it fragments into small particles that cool and solidify as they fall back to the ground. This material can accumulate around the volcano and contribute to the formation of volcanic landforms. Over time, volcanic ash can also play a role in soil formation and impact ecosystems.
Lava is magma that has reached the surface.
Yes, tephra is igneous in origin. Tephra is made up of fragmented rock material ejected during a volcanic eruption, such as ash, pumice, and volcanic bombs, and is typically formed from solidified magma or lava.
The most abundant type of magma erupted at oceanic spread centers is basaltic magma. This type of magma has low viscosity and forms in the mantle part of the Earth that are high in iron and magnesium.
Magma
lava
MAGMA.
magma appears after a volcanic eruption.
the rock is called magma