pohjavesialueita
Pohjavesialueita, also known as subduction zones, are geological features where one tectonic plate moves beneath another and sinks into the Earth's mantle. These areas are characterized by intense seismic activity, including earthquakes and volcanic eruptions. The process of subduction occurs when two plates collide, and the denser plate is forced beneath the less dense one. As the subducting plate descends, it melts due to the increasing pressure and temperature, forming magma that can rise to the surface, creating volcanoes. The most well-known subduction zone is the one along the western coast of South America, where the Nazca Plate is being subducted beneath the South American Plate, forming the Andes mountain range and the Pacific Ring of Fire. Subduction zones play a crucial role in the recycling of the Earth's crust and the formation of new crust through volcanic activity.