Cerro Beltrán is an andesitic-dacitic volcano in the Andes. It erupted andesitic-dacitic lava flows between 14.1 and 7.7 mya. Based on geochemical considerations, the volcano formed from granite and plagioclase bearing, 33–40 kilometres (21–25 mi) thick crust. Part of the volcano was later covered by ignimbrites coming from the Galán caldera eruption.
The volcano is located next to the Salar de Antofalla. It is one of the large long-lived volcanoes forming the Archibarca-Galan volcanic alignment, along with Tebenquicho, Galán and Antofalla.
References
- ^ Kay, Suzanne Mahlburg; Coira, Beatriz; Mpodozis, Constantino (2008). "Field trip guide: Neogene evolution of the central Andean Puna plateau and southern Central Volcanic Zone" (PDF). In Suzanne Mahlburg Kay; Víctor A. Ramos (eds.). GSA Field Guide 13: Field Trip Guides to the Backbone of the Americas in the Southern and Central Andes: Ridge Collision, Shallow Subduction, and Plateau Uplift. Geological Society of America. pp. 117–181. doi:10.1130/2008.0013(05). ISBN 978-0-8137-0013-7.
- ^ Kraemer, B.; Adelmann, D.; Alten, M.; Schnurr, W.; Erpenstein, K.; Kiefer, E.; van den Bogaard, P.; Görler, K. (March 1999). "Incorporation of the Paleogene foreland into the Neogene Puna plateau: The Salar de Antofalla area, NW Argentina". Journal of South American Earth Sciences. 12 (2): 157–182. doi:10.1016/S0895-9811(99)00012-7.
- Cas, Ray A. F.; Wright, Heather M. N.; Folkes, Christopher B.; Lesti, Chiara; Porreca, Massimiliano; Giordano, Guido; Viramonte, Jose G. (16 November 2011). "The flow dynamics of an extremely large volume pyroclastic flow, the 2.08-Ma Cerro Galán Ignimbrite, NW Argentina, and comparison with other flow types". Bulletin of Volcanology. 73 (10): 1583–1609. doi:10.1007/s00445-011-0564-y. hdl:11336/14555. ISSN 1432-0819.
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