Ewing, Tanya; Hermann, Joerg; Rubatto, Daniela
This study investigates the behaviour of the Zr-in-rutile and Ti-in-zircon thermometers in granulite facies metapelites from the Ivrea-Verbano Zone lower crustal section. U-Pb ages of zircon constrain the timing of regional amphibolite-granulite facies metamorphism to 316 ± 3 Ma and record zircon recrystallisation and resetting of U-Pb ages at 276 ± 4 Ma and 258 ± 3 Ma. Zr-in-rutile thermometry records peak contact metamorphic temperatures related to intrusion of mafic magmatic rocks and gives...[Show more]
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