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Pacana Caldera
La Pacana Caldera is the most important caldera of the La Pacana Complex in the Antofagasta Region, northern of Chile, East of the Salar de Atacama. The La Pacana Complex belongs to the Altiplano-Puna Volcanic Complex. Chilean, Bolivian and Argentinian borders meet on the Northeast of the resurgent center (Cerro La Pacana), the Salar Aguas Calientes is on the Southwest of the resurgent center. Size of the caldera depression: 70 km x 35 km. A large eruption occurred 4 mio. years ago; VEI 8; of tethra.
References
Baker, M.C.W., 1981. The nature and distribution of upper Cenozoic ignimbrite centres in the Central Andes. J. Volcanol. Geotherm. Res. v11, p. 293-315.
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. v37, no.2, p. 133-149.
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. v.4, p. 81-87.
Lindsay, J. M.;de Silva, S.;Trumbull, R.; Emmermann, R. and 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), 145173. .
La Pacana Caldera
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article Pacana Caldera
