European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 35, issue 4
Articles | Volume 35, issue 4
https://doi.org/10.5194/ejm-35-589-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-35-589-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 35, issue 4
Research article
 | 
02 Aug 2023
Research article |  | 02 Aug 2023

Petrological study of an eclogite-facies metagranite from the Champtoceaux Complex (La Picherais, Armorican Massif, France)

Thomas Gyomlai, Philippe Yamato, and Gaston Godard

Viewed

Total article views: 848 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
624 200 24 848 22 26
  • HTML: 624
  • PDF: 200
  • XML: 24
  • Total: 848
  • BibTeX: 22
  • EndNote: 26
Views and downloads (calculated since 02 Aug 2023)
Cumulative views and downloads (calculated since 02 Aug 2023)

Viewed (geographical distribution)

Total article views: 836 (including HTML, PDF, and XML) Thereof 836 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 22 Jun 2025
Download
Short summary
The La Picherais metagranite is a key example of undeformed high-pressure quartzofeldspathic rock from the Armorican Massif. Through petrological observations and thermodynamic modelling, this study determines that the metagranite was pressured above 1.7 GPa and the associated mafic lenses at ~ 2.1 GPa. This metagranite provides an opportunity to study the degree of transformation of quartzofeldspathic rocks at high pressure, which may have a significant impact on the dynamics of subduction.
Read more
Share
Special issue
(Ultra)high-pressure metamorphism, from crystal to orogenic...