It forms a volcanic chain with Llullaillaco that extends towards Antofalla and Galán. This lineament is known as Archibarca lineament. Cerro Corrida de Cori and Cerro Negro are associated with the intersections between this lineament and ENE lineaments. Fault zones on the area have controlled the magma ascent, probably facilitating the eruption of fairly primitive basaltic lavas. Among these faults is the Imilac-Salina del Fraile lineament.