Personnel du LMV Narvaez Diego

Narvaez Diego

Thèse 3ème année, IRD
Équipe de Pétrologie
Doctorat E.Koga
Bureau: - LMV Cezeaux
Téléphone: ....
Courriel : diego.narvaez@etu.uca.fr

  • Thèmes de Recherche :

    PHD :

    Sujet : Les sources du magmatisme d’arc : Apport des inclusions magmatiques piégées dans les olivines primitives de l’arc équatorien

    • Summary: Unraveling magma sources at subduction zone magmatism is a challenging task due to the complexities inherited from this geodynamical setting. Melting starts when water-rich fluids from the subducted slab percolate into the hotter and shallower mantle wedge. Depending on the thermal regime of the subducted slab, the nature of this subduction component could be a low density aqueous phase (i.e. fluid) or a high density hydrous siliceous phase (i.e. melt). We studied primary olivine-hosted melt inclusions present in the most primitive rock sampled in the Ecuadorian arc. Once melt inclusions are formed, they are isolated from the surrounding melt and evolve as an isolated system for most of the chemical elements. The aim of this project is to decipher the long time scientific literature discussion about the nature of the slab component in the northern part of the Ecuadorian arc, where the subduction of a young oceanic crust lead some researchers groups to propose that the slab component is a siliceous melt associated with slab partial melting. Furthermore, this study will allow us to constrain the lithologies of the mantle wedge that is thought to be the principal source of continental magmas. Parrain: Lucia Gurioli
    • Encadrants: Estelle Rose-Koga; Pablo Samaniego and Kenneth Koga
    • Support financier: Bourse accordée par l’Institut de recherche pour le développement (IRD) dans le cadre du programme ARTS
    • Marraine : Lucia Gurioli
  • Responsabilités scientifiques et administratives :

  • Publications LMV :

    Rang A :
    Rang B et C :
    • Narvaez D., Rose-Koga E., Samaniego P., Koga K. (2018). Study of primitive olivine-hosted melt inclusions from the Ecuadorian arc. 16th Internationl Conference on Experimental Mineralogy, Petrology and Geochemistry (EMPG XVI), Clermont-Ferrand, June 2018.

    • Narvaez D., Rose-Koga E., Samaniego P., Koga K., Hidalgo S. (2017). Estudio de las Inclusiones Magmáticas contenidas en olivinos del Volcán Sangay y Puñalica para la determinación de la fuente mantélica y del agente metasomático. VIII Jornadas en Ciencias de la Tierra, Escuela Politécnica Nacional, Quito. pp. 427-432.

     

    Publications antérieures :

    • Bernard, J., Eychenne, J., Le Pennec, J.-L., & Narváez, D. (2016). Mass budget partitioning during explosive eruptions: insights from the 2006 paroxysm of Tungurahua volcano, Ecuador. Geochemistry, Geophysics, Geosystems. https://doi.org/10.1002/2016GC006431
    • Parra, R., Bernard, B., Narváez, D., Le Pennec, J.-L., Hasselle, N., & Folch, A. (2016). Eruption Source Parameters for forecasting ash dispersion and deposition from vulcanian eruptions at Tungurahua volcano: Insights from field data from the July 2013 eruption. Journal of Volcanology and Geothermal Research, 309, 1–13. https://doi.org/10.1016/j.jvolgeores.2015.11.001

     

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