Cerro Beltrán
Cerro Beltrán is an andesitic-dacitic volcano in the Andes. It erupted andesitic-dacitic lava flows between 14.1 and 7.7 mya.[1] Based on geochemical considerations, the volcano formed from granite and plagioclase bearing, 33–40 kilometres (21–25 mi) thick crust.[2] Part of the volcano was later covered by ignimbrites coming from the Galán caldera eruption.[3]
The volcano is located next to the Salar de Antofalla.[2] It is one of the large long-lived volcanoes forming the Archibarca-Galan volcanic alignment, along with Tebenquicho, Galán and Antofalla.[1]
References[edit]
- ^ a b 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.
- ^ a b 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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