What is igneous rock layers?

Igneous rock layers are formed from the cooling and solidification of molten rock, known as magma or lava. When magma cools beneath the Earth's surface, it creates intrusive igneous rocks, while lava that cools on the surface forms extrusive igneous rocks. These layers can vary in composition and texture, depending on the rate of cooling and the minerals present. Over time, geological processes may expose these layers, allowing them to be studied in formations such as mountains or cliffs.