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The Andes east of Santiago

The Andean volcanic belt stretches the length of the west coast of South America and forms a chain of continental arc volcanoes, related to the subduction of the Nazca and Antartic tectonic plates beneath the South American Plate. CRITMAG field areas are concentrated in the Central Volcanic Zone (CVZ), home to the Altiplano-Puna Magma Body (APMB), the largest active magma body in Earth’s continental crust. Research currently involves:

  • Uturuncu, a rapidly inflating dacitic stratovolcano in Bolivia
  • Laguna del Maule, a vast rhyolitic volcanic complex spanning the border between Chile and Argentina