European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 3
Articles | Volume 36, issue 3
https://doi.org/10.5194/ejm-36-491-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-36-491-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 3
Research article
 | 
25 Jun 2024
Research article |  | 25 Jun 2024

Magmatic to solid-state evolution of a shallow emplaced agpaitic tinguaite (the Suc de Sara dyke, Velay volcanic province, France): implications for peralkaline melt segregation and extraction in ascending magmas

Thomas Pereira, Laurent Arbaret, Juan Andújar, Mickaël Laumonier, Monica Spagnoli, Charles Gumiaux, Gautier Laurent, Aneta Slodczyk, and Ida Di Carlo

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Short summary
This work presents the results on deformation-enhanced melt segregation and extraction in a phonolitic magma emplaced at shallow depth in the Velay volcanic province (France). We provide evidence of the segregation and subsequent extraction of the residual melt during magma ascent and final emplacement. We highlight that melt segregation started by compaction as a loose packing of microlites emerged and continued with melt filling of a shear band network.
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