Project

Back to overview

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

English title 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
Applicant Dungan Michael
Number 107841
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 01.06.2005 - 31.05.2007
Approved amount 328'892.00
Show all

Keywords (9)

arc volcanism; subduction; magmatic processes; crustal assimilation; crustal xenoliths; partial melting; magma genesis; magma differentiation; arc magmatism

Lay Summary (English)

Lead
Lay summary
The Volcanic Studies Group at the University of Geneva is engaged in a long term effort to quantify the processes involved in magma genesis and evolution in continental volcanic arcs, with an emphasis on the Quaternary Southern Volcanic Zone of the Andes. In pursuit of this goal we are continuing a comprehensive study of the Tatara-San Pedro complex (36E S) that was begun in 1984, and are close to finishing an investigation of Nevada de Longaví a nearby (36.2E S) but very different volcanic center. In addition, we are synthesizing available data from volcanic centers along the arc between 33 and 41E S, and are attempting to relate regional geochemical patterns to the composition of the arc crust by sampling Tertiary batholiths in the region 35-38E S. These efforts have aided us in distinguishing between mantle and crustal contributions to arc magmas.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
100731 Petrologic and geochemical studies of the Andean Southern Volcanic Zone II: A multi-faceted approach to modelling the origin and evolution of continental arc magmas 01.06.2003 Project funding
116313 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 01.06.2007 Project funding

-