pohjakerroksena
Pohjakerroksena, also known as the basement rock, refers to the layer of rock that lies beneath the surface of the Earth's crust. This layer is typically composed of igneous, sedimentary, or metamorphic rocks, and it plays a crucial role in the geological processes that shape the Earth's surface. The thickness and composition of pohjakerroksena can vary significantly depending on the region, with some areas having a thin layer of sedimentary rock overlying a thick basement of igneous rock, and others having a thick layer of metamorphic rock.
The basement rock is often characterized by its stability and resistance to erosion, making it a significant