Purico Complex

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 23°S
  • 67.75°W

  • 5703 m
    18706 ft

  • 355094
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Purico Complex.

 Available Weekly Reports

There are no Weekly Reports available for Purico Complex.

There are no Holocene eruptions known for Purico Complex. If this volcano has had large eruptions prior to 10,000 years ago, information might be found in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

de Silva S L, Francis P W, 1991. Volcanoes of the Central Andes. Berlin: Springer-Verlag, 216 p.

de Silva S, Gosnold W D, 2007. Episodic construction of batholiths: insights from the spatiotemporal development of an ignimbrite flare-up. J Volc Geotherm Res, 167: 320-335.

Francis P W, McDonough W F, Hammill M, O'Callaghan L J, Thorpe R S, 1984. The Cerro Purico shield complex, north Chile. In: Harmon R S and Barreiro B A (eds) {Andean Magmatism - Chemical and Isotopic Constraints}, Cheshire, UK: Shiva Pub, p 106-123.

Gardeweg M, Lindsay J, 2004. Lascar volcano and La Pacana caldera. IAVCEI Gen Assembly 2004 Pucon, Chile Field Trip Guide A2, 32 p.

Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.

Hawkesworth C J, Hammill M, Gledhill A R, van Calsteren P, Rogers G, 1982. Isotope and trace element evidence for late-stage intra-crustal melting in the High Andes. Earth Planet Sci Lett, 58: 240-254.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Moreno H, 1985. . (pers. comm.).

Schmidt A K, de Silva S L, Trumbull R B, Emmermann R, 2001. Magma evolution in the Purico ignimbrite complex, northern Chile: evidence for zoning of a dacitic magma by injection of rhyolitic melts. Contr Mineral Petr, 140: 680-700.

The Purico volcanic complex consists of two ignimbrite sheets, separated by a short erosional interval, that were erupted about 1.3 million years ago, along with several stratovolcanoes and lava domes that define a postulated 10 x 20 km ring fracture. Cerro Toco volcano overlies the vent area of the Cajón Ignimbrite and a sulfur mine on its SE flank was mined until the early 1990s. The youngest lava domes, Cerro Chascón de Purico and Cerro Aspero are of Holocene age (de Silva and Francis, 1991). Both domes differ morphologically from many other flat-topped silicic Andean volcanic domes and have 300-400 m high conical profiles. Cerro Chascón was formed by a series of viscous lava flows, whereas Cerro Aspero appears to be a single Pelean-type dome. The Chascón de Purico dacitic dome rising 1200 m above the ignimbrite shield has a well-preserved summit crater and lava flows that show no evidence of glacial modification. The dacitic-to-andesitic Macon stratovolcano of Holocene age lies at the southern end of the complex, and the Alitar maar at the SE end displays constant solfataric activity.