which type of volcanism formed the andes in south america
The Andes Mountains were formed from volcanism and uplift created by the collision of the Nazca plate with the South American plate. 58 people found this useful.
The largest active volcanoes of the Andes Mountains of western South America are composite volcanoes. ______ volcanoes are steepest near their summits and less steep at the base. Composite. Broad gently sloping volcanoes consisting mostly of lava flows are______ volcanoes.