Abra Granada

Short description: Volcanic complex in Puna de Atacama, Argentina

Template:Infobox volcanic hotspot

[ ⚑ ]  22°32′S 66°32′W﻿ / ﻿22.533°S 66.533°W﻿ / -22.533; -66.533Abra Granada is a volcanic complex in the Puna de Atacama in Argentina. It is located approximately 45 kilometres (28 mi) north of Pirquitas and is composed from a lava dome, lavas and dacitic ignimbrites centering on Cerro Granada (5,700 metres (18,700 ft)) and are dated 9.8-7.8 Ma.[1] Deposits erupted 7.9-5.0 mya by this volcano overlie the older Granada ignimbrite.[2] Individual volcanic centres are known as Cerro Caucani, Cerro Granada and Cerro Solterío. The Pirquitas mine is part of the volcanic complex.[3]

Other peraluminous rocks were erupted 10 mya.[4] The complex is the likely source of the Granada Ignimbrite. The ignimbrite reaches its maximum thickness in the complex.[5]

## References

1. ↑ Warwick S. Board; R. Bruce Kennedy; Trevor J. Yeomans (December 23, 2011). ﻿NI 43-101 Technical Report on the Pirquitas Mine, Jujuy Province, Argentina.﻿ (Report). Silver Standard Resources Inc.. p. 55. http://www.silverstandard.com/_resources/Pirquitas_Technical_Report_Dec_23_FINAL_v2.pdf. Retrieved August 22, 2015.
2. ↑ Caffe, P.J.; Soler, M.M.; Coira, B.L.; Onoe, A.T.; Cordani, U.G. (2008). "The Granada ignimbrite: A compound pyroclastic unit and its relationship with Upper Miocene caldera volcanism in the northern Puna". Journal of South American Earth Sciences 25 (4): 464–484. doi:10.1016/j.jsames.2007.10.004. ISSN 0895-9811.
3. ↑ Peralta Arnold, Y.; Cabassi, J.; Tassi, F.; Caffe, P. J.; Vaselli, O. (15 May 2017). "Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina)" (in en). Journal of Volcanology and Geothermal Research 338: 123. doi:10.1016/j.jvolgeores.2017.03.030. ISSN 0377-0273. https://www.sciencedirect.com/science/article/pii/S0377027316305194.
4. ↑ "GEOQUÍMICA, FUENTES Y EVOLUCIÓN DEL MAGMATISMO NEÓGENO DE LA PUNA NORTE" (Press release) (in español). RELATORIO DEL XVII CONGRESO GEOLÓGICO ARGENTIN. July 2008.
5. ↑ Silvia E. Singer; Rubén Somoza; Juan F. A. Vilas (2011). "APLICACIÓN DE LA ANISOTROPÍA DE SUSCEPTIBILIDAD MAGNÉTICA AL RECONOCIMIENTO DE DEPÓSITOS VO LCANICLÁSTICOS EN EL COMPLEJO VOLCÁNICO ALTIPLANO - PUNA, ANDES CENTRALES, ARGENTINA" (in es). Argentina: Latinmag Letters. http://www.geofisica.unam.mx/LatinmagLetters/LL11-0102P/D/D26-Singer.pdf. Retrieved August 22, 2015.

## Further reading

Caffe, P.J.; Soler, M.M.; Coira, B.L.; Onoe, A.T.; Cordani, U.G. (2008). "The Granada ignimbrite: A compound pyroclastic unit and its relationship with Upper Miocene caldera volcanism in the northern Puna". Journal of South American Earth Sciences 25 (4): 464–484. doi:10.1016/j.jsames.2007.10.004. ISSN 0895-9811.

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