Välilevynpullistuman

Välilevynpullistuman, also known as the Finnish term for "plate tectonics," refers to the scientific theory explaining the large-scale movements of Earth's lithosphere. This theory describes how the rigid outer shell of the planet, divided into tectonic plates, shifts and interacts at their boundaries. The concept was developed through observations of continental drift, seismic activity, and volcanic patterns, building upon earlier ideas such as Alfred Wegener's continental drift hypothesis.

In Finnish geological studies, the term *välilevynpullistuman* emphasizes the dynamic nature of Earth's crust, where plates move apart, collide, or slide past one another. These movements are driven by mantle convection, slab pull, and ridge push forces, leading to phenomena like earthquakes, mountain formation, and the creation of ocean basins. Finland, though not located near major plate boundaries, experiences minor tectonic activity due to its position within the Baltic Shield, an ancient and stable part of the Eurasian Plate.

The study of plate tectonics is fundamental to understanding Earth's geology, climate history, and natural hazards. Finnish research in this field contributes to global seismic monitoring, volcanic risk assessment, and the interpretation of geological formations. The theory remains a cornerstone of modern geophysics, explaining the evolution of continents and the distribution of Earth's resources over millions of years.