Ojos de Maricunga is part of the Maricunga Belt, a volcanic area of Oligocene to Pliocene age consisting of lava domes and stratovolcanoes that developed just south of the present-day Central Volcanic Zone of the Andes and is associated with metal ore deposits. The volcano was active during a time in the Miocene where volcanism in the Maricunga belt had increased. Other volcanoes active at that time were Cadillal, Dona Ines, north Jotabeche, La Laguna, Pastillitos, Santa Rosa and Villalobos .