A skarn copper ore deposit localized in an Early Cretaceous (Valanginian) volcanic-sedimentary sequence intruded by a Cretaceous diorite.
Located about 50 km south of La Serena and 400 km north of Santiago.
Ref.:
Sugaki, A., Campos, E. & Kojima, S. (2000): Mineralogy of the Panulcillo skarn copper deposit, Coquimbo region, Chile. Revista Geologica de Chile 27, 139-155.