Abra Granada: Difference between revisions
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{{coord|22|32|S|66|32|W|display=title}}'''Abra Granada''' is a volcanic complex in the [[Puna de Atacama]] in [[Bolivia]]. It is located approximately {{convert|45|km}} north of [[Pirquitas]] and is composed from a [[lava dome]], [[lava]]s and [[dacitic]] [[ignimbrite]]s centering on Cerro Granada ({{convert|5700|m}}) and are dated 9.8-7.8 Ma.<ref>{{Cite report | |
{{coord|22|32|S|66|32|W|display=title}}'''Abra Granada''' is a volcanic complex in the [[Puna de Atacama]] in [[Bolivia]]. It is located approximately {{convert|45|km}} north of [[Pirquitas]] and is composed from a [[lava dome]], [[lava]]s and [[dacitic]] [[ignimbrite]]s centering on Cerro Granada ({{convert|5700|m}}) and are dated 9.8-7.8 Ma.<ref>{{Cite report |author =Dr. Warwick S. Board, R. Bruce Kennedy and Trevor J. Yeomans |date=December 23, 2011 |title=NI 43-101 Technical Report on the Pirquitas Mine, Jujuy Province, Argentina. |url=http://www.silverstandard.com/_resources/Pirquitas_Technical_Report_Dec_23_FINAL_v2.pdf |publisher=Silver Standard Resources Inc. |page=55 |accessdate=August 22, 2015 |quote= }}</ref> Deposits erupted 7.9-5.0 [[mya (unit)|mya]] by this volcano overlie the older Granada [[ignimbrite]].<ref name="CaffeSoler2008">{{cite journal|last1=Caffe|first1=P.J.|last2=Soler|first2=M.M.|last3=Coira|first3=B.L.|last4=Onoe|first4=A.T.|last5=Cordani|first5=U.G.|title=The Granada ignimbrite: A compound pyroclastic unit and its relationship with Upper Miocene caldera volcanism in the northern Puna|journal=Journal of South American Earth Sciences|volume=25|issue=4|year=2008|pages=464–484|issn=0895-9811|doi=10.1016/j.jsames.2007.10.004}}</ref> Other [[peraluminous]] rocks were erupted 10 [[mya (unit)|mya]].<ref>{{cite press release | title=GEOQUÍMICA, FUENTES Y EVOLUCIÓN DEL MAGMATISMO NEÓGENO DE LA PUNA NORTE | publisher=RELATORIO DEL XVII CONGRESO GEOLÓGICO ARGENTIN | date=July 2008 | language=es}}</ref> The complex is the likely source of the Granada Ignimbrite. The ignimbrite reaches its maximum thickness in the complex.<ref>{{cite conference | url=http://www.geofisica.unam.mx/LatinmagLetters/LL11-0102P/D/D26-Singer.pdf | title=APLICACIÓN DE LA ANISOTROPÍA DE SUSCEPTIBILIDAD MAGNÉTICA AL RECONOCIMIENTO DE DEPÓSITOS VO LCANICLÁSTICOS EN EL COMPLEJO VOLCÁNICO ALTIPLANO - PUNA, ANDES CENTRALES, ARGENTINA | publisher=Latinmag Letters | accessdate=August 22, 2015 | author=Silvia E. Singer, Rubén Somoza, Juan F. A. Vilas | booktitle=Tandil | year=2011 | location=Argentina language=es }}</ref> |
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==References== |
==References== |
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Revision as of 21:26, 14 May 2016
22°32′S 66°32′W / 22.533°S 66.533°WAbra Granada is a volcanic complex in the Puna de Atacama in Bolivien. 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] Other peraluminous rocks were erupted 10 mya.[3] The complex is the likely source of the Granada Ignimbrite. The ignimbrite reaches its maximum thickness in the complex.[4]
References
- ^ Dr. Warwick S. Board, R. Bruce Kennedy and Trevor J. Yeomans (December 23, 2011). NI 43-101 Technical Report on the Pirquitas Mine, Jujuy Province, Argentina (PDF) (Report). Silver Standard Resources Inc. p. 55. Retrieved August 22, 2015.
- ^ 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.
- ^ "GEOQUÍMICA, FUENTES Y EVOLUCIÓN DEL MAGMATISMO NEÓGENO DE LA PUNA NORTE" (Press release) (in Spanish). RELATORIO DEL XVII CONGRESO GEOLÓGICO ARGENTIN. July 2008.
- ^ 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" (PDF). Tandil. Argentina language=es: Latinmag Letters. Retrieved August 22, 2015.
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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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