Abra Granada Explained
| Abra Granada |
| Country: | Argentina |
| Region: | Puna de Atacama |
| Age: | 9.8-7.8 Ma |
| Last Eruption: | 7.9-5.0 mya |
-22.5333°N -98°WAbra Granada is a volcanic complex in the Puna de Atacama in Argentina. It is located approximately north of Pirquitas and is composed from a lava dome, lavas and dacitic ignimbrites centering on Cerro Granada 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]
Further reading
Caffe. P.J.. Soler. M.M.. Coira. B.L.. Onoe. A.T.. Cordani. U.G.. 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. 2008. 464–484. 0895-9811. 10.1016/j.jsames.2007.10.004.
Notes and References
- Warwick S. Board . R. Bruce Kennedy . Trevor J. Yeomans . December 23, 2011 . NI 43-101 Technical Report on the Pirquitas Mine, Jujuy Province, Argentina. . Silver Standard Resources Inc. . 55 . August 22, 2015 .
- Caffe. P.J.. Soler. M.M.. Coira. B.L.. Onoe. A.T.. Cordani. U.G.. 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. 2008. 464–484. 0895-9811. 10.1016/j.jsames.2007.10.004.
- Peralta Arnold . Y. . Cabassi . J. . Tassi . F. . Caffe . P. J. . Vaselli . O. . Fluid geochemistry of a deep-seated geothermal resource in the Puna plateau (Jujuy Province, Argentina) . Journal of Volcanology and Geothermal Research . 15 May 2017 . 338 . 123 . 10.1016/j.jvolgeores.2017.03.030 . en . 0377-0273. 2158/1087501 . free .
- GEOQUÍMICA, FUENTES Y EVOLUCIÓN DEL MAGMATISMO NEÓGENO DE LA PUNA NORTE . RELATORIO DEL XVII CONGRESO GEOLÓGICO ARGENTIN . July 2008 . es.
- APLICACIÓN DE LA ANISOTROPÍA DE SUSCEPTIBILIDAD MAGNÉTICA AL RECONOCIMIENTO DE DEPÓSITOS VO LCANICLÁSTICOS EN EL COMPLEJO VOLCÁNICO ALTIPLANO - PUNA, ANDES CENTRALES, ARGENTINA . Latinmag Letters . August 22, 2015 . Silvia E. Singer . Rubén Somoza . Juan F. A. Vilas . Tandil . 2011 . Argentina . es .
