Je suis
FR FR
Citoyen / Grand public
Chercheur
Étudiant / Futur étudiant
Entreprise
Partenaire public
Journaliste
Enseignant / Elève

Pulsed metamorphism and fluid release at the subduction interface

11/06/2018

IPGP - Îlot Cuvier

11:00

Séminaires Tectonique et Mécanique de la Lithosphère

Salle 310

Besim Dragovic

Virginia Tech, US

Dehydration and densification of subducting oceanic crust and mantle drive plate tectonics, control elemental cycling to the deep Earth, and induce arc magmatism and intermediate-depth seismicity. While subduction can persist for millions of years, the processes related to fluid release and densification are shown to be brief. This study uses field-based constraints to determine the duration and rates of metamorphism and fluid release during subduction, utilizing garnet geochronology, phase equilibria modeling, and geodynamic models to better understand subduction zone processes.