The Domeyko Fault ( Spanish: Falla Domeyko) or Precordilleran Fault System is a geological fault located in Northern Chile. [1] The fault is of the strike-slip type and runs parallel to the Andes, the coast and the nearby Atacama Fault. The fault originated in the Eocene. [1] Along its length the Domeyko Fault hosts several porphyry copper deposits including Chuquicamata, Collahuasi, El Abra, El Salvador, La Escondida and Potrerillos. [2] The fault is named after 19th century geologist Ignacy Domeyko.