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Volcan Llaima (38.7 OS; Andean Southern Volcanic Zone): An integrated geochemical, petrological, and volcanological study of an active and dangerous arc volcano in southern Chile

English title Volcan Llaima (38.7 OS; Andean Southern Volcanic Zone): An integrated geochemical, petrological, and volcanological study of an active and dangerous arc volcano in southern Chile
Applicant Dungan Michael
Number 116313
Funding scheme Project funding
Research institution Département des sciences de la Terre Université de Genève
Institution of higher education University of Geneva - GE
Main discipline Mineralogy
Start/End 01.06.2007 - 31.05.2009
Approved amount 362'078.00
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Keywords (17)

arc volcanism; subduction; magmatic processes; crustal assimilation; crustal xenoliths; partial melting; igenous petrology; arc magmatism; Chilean Andes; physical volcanology; Andean volcanism; subduction zones; petrology and geochemistry; Chile; explosive eruption dynamics; numerical modeling; volcán llaima

Lay Summary (English)

Lead
Lay summary
Volcán Llaima, one of the most historically active volcanoes in the Andean arc, is informally referred to by us as a ‘hyperactive’ volcano due to the occurrence of at least 50 eruptions since 1640 (repose period ~7.5 years). The large eruption in January-February, 2008, allowed us to conduct our 2008 field studies and sampling at the same time that we were able to observe ongoing activity, study the consequences of the far-traveled laharic mud flow of January 1-2, 2008 (including deep incision of the north flank), and to integrate geophysical observations into our thinking about magmatic processes at Llaima. This opportunity has invigorated and modified our perspective on this edifice, and it will enable us to combine our investigations into the origin and evolution of magmas at Llaima, and how this edifice informs us about these topics in the Andean Southern Volcanic Zone as a whole, with petrophysical modeling and physical volcanology in order to gain further insights into eruptive processes at this dangerous volcano. This study is the first attempt at combining all these diverse kinds of information into a comprehensive understanding of an active Chilean volcano.
Direct link to Lay Summary Last update: 21.02.2013

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Associated projects

Number Title Start Funding scheme
125019 Volcan Llaima (38.7°S; Andean Southern Volcanic Zone) II: An integrated geochemical, petrologic, and volcanological study of an active and dangerous arc volcano in southern Chile 01.06.2009 Project funding
125019 Volcan Llaima (38.7°S; Andean Southern Volcanic Zone) II: An integrated geochemical, petrologic, and volcanological study of an active and dangerous arc volcano in southern Chile 01.06.2009 Project funding
107841 Petrologic and geochemical studies of the Andean Southern Volcanic Zone III: A multi-faceted approach to modelling the origin and evolution of continental arc magmas 01.06.2005 Project funding

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