Magma is created within the Earth's crust through the process of partial melting of rocks in the mantle. This melting can be triggered by factors such as heat from the Earth's core, pressure changes, or the introduction of water. The molten rock, or magma, then rises towards the surface through cracks and fractures in the crust, eventually leading to volcanic activity.
Magma that hardens within the Earth's crust is called intrusive igneous rock. This type of rock forms when magma cools and solidifies beneath the Earth's surface, resulting in the formation of intrusive features like batholiths, dikes, and sills.
Magma is formed deep within the Earth's mantle due to high temperatures and pressure. When magma rises towards the Earth's crust, it does so through fractures or weaknesses in the crust, driven by buoyancy forces. As it ascends, it can create volcanic activity through eruptions or intrusions into the crust.
Silica-rich magma forms in mid-ocean ridges due to partial melting of the upper mantle, as a result of increased temperature and decreased pressure. This magma rises through cracks in the oceanic crust and can eventually erupt at the surface as lava.
Continental crust contains granite. This type of crust is thicker and less dense compared to oceanic crust. Granite is a common rock in the continental crust due to its formation through the cooling and solidification of magma below the Earth's surface.
The Extrusive igneous rock is formed on the earths surface while the Intrusive igneous rock is formed within or inside the earths crust.
magma
Lava
Magma
It is from the Volcano
Lava!
Once magma breaks through the earths crust it is called"lava"
Lava....when its under the earths crust its called magma.
Lava
crust
sills
The correct answer is Volcanos
Magma that hardens within the Earth's crust is called intrusive igneous rock. This type of rock forms when magma cools and solidifies beneath the Earth's surface, resulting in the formation of intrusive features like batholiths, dikes, and sills.