25°19′59.988″S 67°40′59.988″W / 25.33333000°S 67.68333000°W / -25.33333000; -67.68333000Tebenquicho is a volcano in Argentina.

The volcano is constructed by lava domes, lava flows and pyroclastic flows.[1] Among its eruption products are potassium-rich dacites which show evidence of having interacted with the crust when they formed.[2] The volcano was active between 14 and 6 million years ago; as volcanism waned mafic activity started up elsewhere in the Puna.[3]

Tebenquicho together with other volcanoes such as Antofalla is a back-arc stratovolcano of the Puna. These volcanoes developed starting from 15-14 million years ago in response to a change in the subduction of the Nazca Plate beneath the South America Plate.[4] These edifices are voluminous and volcanic activity on them long-lasting.[5] Additionally, Tebenquicho together with Galan, Llullaillaco and some monogenetic volcanoes forms the so-called Archibarca volcano lineament.[2]

References

  1. ↑ Bustos, Emilce; Arnosio, José Marcelo; Norini, Gianluca (June 2015). "Análisis morfológico del complejo volcánico La Hoyada puna austral mediante la aplicación de modelos de elevación digital". Revista de la Asociación Geológica Argentina. 72 (2): 279–291. ISSN 0004-4822.
  2. 1 2 Richards, Jeremy P; Villeneuve, Michael (August 2002). "Characteristics of late Cenozoic volcanism along the Archibarca lineament from Cerro Llullaillaco to Corrida de Cori, northwest Argentina". Journal of Volcanology and Geothermal Research. 116 (3–4): 161–200. doi:10.1016/S0377-0273(01)00329-8.
  3. ↑ Risse, Andreas; Trumbull, Robert B.; Coira, Beatriz; Kay, Suzanne M.; Bogaard, Paul van den (1 July 2008). "40Ar/39Ar geochronology of mafic volcanism in the back-arc region of the southern Puna plateau, Argentina". Journal of South American Earth Sciences. 26 (1): 1–15. doi:10.1016/j.jsames.2008.03.002.
  4. ↑ 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.
  5. ↑ 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.
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