La Pacana is a Miocene age caldera in northern Chile's Antofagasta Region. Part of the Central Volcanic Zone of the Andes, it is part of the Altiplano-Puna volcanic complex, a major caldera and silicic ignimbrite volcanic field. This volcanic field is located in remote regions at the Zapaleri tripoint between Chile, Bolivia and Argentina.
La Pacana along with other regional volcanoes was formed by the subduction of the Nazca Plate beneath the South American Plate in the Peru-Chile Trench. La Pacana is situated in a basement formed by various Paleozoic formations and Tertiary ignimbrites and volcanoes. Several major faults cross the region at La Pacana and have influenced its volcanic activity.
La Pacana is a supervolcano and is responsible for the eruption of the giant Atana ignimbrite, which reaches a volume of 2,500–3,500 cubic kilometres (600–840 cu mi) and constitutes the fifth-largest explosive eruption known. The Atana ignimbrite was erupted 3.8 ± 0.1 and 4.2 ± 0.1 million years ago, almost simultaneously with the much smaller (volume of 180 cubic kilometres (43 cu mi)) Toconao ignimbrite. The Pujsa ignimbrite was erupted by La Pacana before the Atana/Toconao ignimbrites, and the Filo Delgado and Pampa Chamaca/Talabre ignimbrites afterwards.
LaPacana is a Miocene age caldera in northern Chile's Antofagasta Region. Part of the Central Volcanic Zone of the Andes, it is part of the Altiplano-Puna...
June 2022. Lindsay, J. M. (1 March 2001). "Magmatic Evolution of the LaPacana Caldera System, Central Andes, Chile: Compositional Variation of Two Cogenetic...
M.; S. de Silva; R. Trumbull; R. Emmermann; K. Wemmer (April 2001). "LaPacana caldera, N. Chile: a re-evaluation of the stratigraphy and volcanology...
and ignimbrites of which Purico is a member. Licancabur to the north, LaPacana southeast and Guayaques to the east are separate volcanic systems. The...
of Guayaques volcanic group and north of the Cerros de LaPacana, the resurgent dome of LaPacana caldera. The mountain features an exposed hydrothermal...
New Zealand Morococala, Oruro, Bolivia LaPacana, Antofagasta, Chile Pastos Grandes, Sur Lípez, Bolivia La Reforma, Baja California, Mexico Lake Taupō...
the volcano, the basement is covered by ignimbrites from the Chaxas, LaPacana and Purico volcanoes, and lava domes of dacitic-rhyodacitic composition...
339 ft), the highest point of this basin. The salt pan is located within LaPacana caldera, south of Salar de Tara. "Sistema de Información Territorial de...
Lindsay J. M.; de Silva S.; Trumbull R.; Emmermann R.; Wemmer K. (2001). "LaPacana caldera, N. Chile: a re-evaluation of the stratigraphy and volcanology...
Volcanic Complex, as are Cerro Panizos, Pastos Grandes, Cerro Guacha, and LaPacana. Other silicic systems are Los Frailes ignimbrite plateau in Bolivia,...
the moat which surrounds the 4 mya 60 by 35 kilometres (37 mi × 22 mi) LaPacana caldera.: 813 Coquena formed along an outer ring fault. The caldera wall...
calderas in the APVC are Cerro Guacha, Cerro Panizos, Coranzulí, Kapina, LaPacana, Pastos Grandes and Vilama, but other buried calderas may exist and only...
beneath Guacha. Guacha caldera is also closely linked to the neighbouring LaPacana caldera. The Guacha caldera forms a structure with the neighbouring Cerro...
as well as active faults and multiple large calderas such as Galán and LaPacana. Some of the largest known explosive eruptions and enormous ignimbrites...
S. L., Siebel, W., & Emmermann, R. (2001). Magmatic evolution of the LaPacana caldera system, Central Andes, Chile: Compositional variation of two cogenetic...
calderas, starting from the middle Miocene. Among these, Cerro Guacha, LaPacana, Pastos Grandes and Vilama produced supereruptions. The Tatio ignimbrite...
Other volcanoes such as Cordon de Puntas Negras and the rim of the large LaPacana caldera farther north are also influenced by this lineament. A north-south...
geoscience) from the Justus-Liebig-Universität Gießen in 2000, for research on LaPacana caldera, a late Miocene age supervolcano in Chile. During her PhD studies...
contemporaneous with the ignimbrite volcanism of the APVC, with Cerro Guacha and LaPacana calderas being located nearby. Cerro Bitiche is located in the area of...
calderas include Aguas Calientes, Cerro Panizos, Galan, Negra Muerta and LaPacana. Some of these volcanic centres appear to be associated with large fault...
"supereruptions" with Volcanic Explosivity Indexes of 8 at Cerro Guacha, LaPacana, Pastos Grandes and Vilama. Over 50 volcanoes in the region are potentially...
close to Laguna Lejía, over ignimbrites of Pliocene age erupted by the LaPacana volcano. It is 480 by 580 metres (1,570 ft × 1,900 ft) wide and 72 metres...
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