Pacana Caldera
| Pacana Caldera | |
|---|---|
  Pacana Caldera Northern Chile | |
| Highest point | |
| Elevation | 4,500 m (14,800 ft) |
| Listing | List of volcanoes in Chile |
| Coordinates | 23°10′S 67°25′W / 23.167°S 67.417°WCoordinates: 23°10′S 67°25′W / 23.167°S 67.417°W |
| Geography | |
| Location | Northern Chile |
| Geology | |
| Mountain type | Caldera |
| Volcanic arc/belt | Altiplano–Puna volcanic complex |
| Last eruption | 2 mya |
La Pacana Caldera is the most important caldera of the La Pacana Complex in the Antofagasta Region, of northern Chile, east of the Salar de Atacama. The La Pacana Complex belongs to the Altiplano–Puna volcanic complex. The Chilean, Bolivian, and Argentinan borders meet to the northeast of the resurgent center (Cerro La Pacana), the Salar Aguas Calientes is on the southwest of the resurgent center. The size of the caldera depression is 70 km (43 mi) x 35 km (22 mi). A large (VEI 8) eruption c. 4 million years ago produced 2,500 km3 (600 cu mi) of tephra.
References
- Baker, M.C.W. (1981). "The nature and distribution of upper Cenozoic ignimbrite centres in the Central Andes". J. Volcanol. Geotherm. Res. 11 (2–4): 293–315. Bibcode:1981JVGR...11..293B. doi:10.1016/0377-0273(81)90028-7.
- de Silva, S.L.; Francis, P.W. (1989). "Correlation of large ignimbrites - two case studies from the Central Andes of N. Chile". J. Volcanol. Geotherm. Res. 37 (2): 133–149. Bibcode:1989JVGR...37..133D. doi:10.1016/0377-0273(89)90066-8.
- Francis, P.W.; Baker, M.C.W. (1978). "Sources of two large-volume ignimbrites in the Central Andes: Some Landsat evidence". J. Volcanol. Geotherm. Res. 4: 81–87. Bibcode:1978JVGR....4...81F. doi:10.1016/0377-0273(78)90029-X.
- Lindsay, J. M.; de Silva, S.; Trumbull, R.; Emmermann, R.; Wemmer, K. (2001). "La Pacana caldera, N. Chile: a re-evaluation of the stratigraphy and volcanology of one of the world's largest resurgent calderas". Journal of Volcanology and Geothermal Research 106 (1–2): 145–173. Bibcode:2001JVGR..106..145L. doi:10.1016/S0377-0273(00)00270-5.
- Stern, Charles R. (December 2004). "Active Andean volcanism: its geologic and tectonic setting". Revista geológica de Chile 31 (2): 161–206. doi:10.4067/S0716-02082004000200001. Retrieved 2010-03-15.
- La Pacana Caldera
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