Geochronology
Geochronology
GChron
Articles | Volume 3, issue 1
Articles | Volume 3, issue 1
https://doi.org/10.5194/gchron-3-259-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-3-259-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 3, issue 1
Research article
 | 
04 May 2021
Research article |  | 04 May 2021

The closure temperature(s) of zircon Raman dating

Birk Härtel, Raymond Jonckheere, Bastian Wauschkuhn, and Lothar Ratschbacher

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Short summary
We carried out thermal annealing experiments between 500 and 1000 °C to determine the closure temperature of radiation-damage annealing in zircon (ZrSiO4). Our results show that the different Raman bands of zircon respond differently to annealing. The repair is highest for the external rotation Raman band near 356.6 cm−1. The closure temperature estimates range from 250 to 370 °C for different bands. The differences in closure temperatures offer the prospect of multi-T zircon Raman dating.
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