Andean Volcanism refers to the volcanic activity associated with the Andes Mountains, a major mountain range in South America. This volcanism is primarily caused by the subduction of the Nazca Plate beneath the South American Plate, leading to the formation of numerous volcanoes along the western edge of the continent. The region is home to several active and dormant volcanoes, such as Cotopaxi and Llullaillaco. These volcanoes contribute to the diverse geological features and ecosystems found in the Andes, influencing local climate and providing valuable resources like minerals and geothermal energy.