GENERAL GEOLOGY

Detailed explanation-1: -Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. Earth has a layered structure that consists of the inner core, outer core, mantle, and crust. Much of the planet’s mantle consists of magma. This magma can push through holes or cracks in the crust, causing a volcanic eruption.

Detailed explanation-2: -Complete answer: Igneous rock or magmatic rock is made up of molten magma. It is one of the three main rock types; sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of lava. Magma can be derived from partial melts of existing rocks in Earth’s crust.

Detailed explanation-3: -A layer of molten rock trapped since Earth’s formation may exist where the solid mantle meets the core, a new study says. A layer of searing hot liquid magma trapped since Earth’s formation may lie 1, 800 miles (2, 900 kilometers) beneath our feet, new research suggests.

Detailed explanation-4: -When magma reaches the surface it is then called lava and the eruptions of lava and ash produce volcanoes. The lava that reaches the Earth’s surface will harden and become igneous rock. When the magma does not reach the surface it produces a variety of geologic structures.