Current applications using key mineral phases in igneous and metamorphic geology: perspectives for the future - Université Clermont Auvergne Accéder directement au contenu
Chapitre D'ouvrage Année : 2023

Current applications using key mineral phases in igneous and metamorphic geology: perspectives for the future

Silvia Volante
Eleanore Blereau
Martin Guitreau
Mahyra Tedeschi
  • Fonction : Auteur
Valby van Schijndel
  • Fonction : Auteur
Kathryn Cutts
  • Fonction : Auteur

Résumé

Abstract The study of magmatic and metamorphic processes is challenged by geological complexities like geochemical variations, geochronological uncertainties and the presence/absence of fluids and/or melts. However, by integrating petrographic and microstructural studies with geochronology, geochemistry and phase equilibrium diagram investigations of different key mineral phases, it is possible to reconstruct insightful pressure–temperature–deformation–time histories. Using multiple geochronometers in a rock can provide a detailed temporal account of its evolution, as these geological clocks have different closure temperatures. Given the continuous improvement of existing and new in situ analytical techniques, this contribution provides an overview of frequently utilized petrochronometers such as garnet, zircon, titanite, allanite, rutile, monazite/xenotime and apatite, by describing the geological record that each mineral can retain and explaining how to retrieve this information. These key minerals were chosen as they provide reliable age information in a variety of rock types and, when coupled with their trace element (TE) composition, form powerful tools to investigate crustal processes at different scales. This review recommends best applications for each petrochronometer, highlights limitations to be aware of and discusses future perspectives. Finally, this contribution underscores the importance of integrating information retrieved by multi-petrochronometer studies to gain an in-depth understanding of complex thermal and deformation crustal processes.

Dates et versions

hal-04495471 , version 1 (08-03-2024)

Identifiants

Citer

Silvia Volante, Eleanore Blereau, Martin Guitreau, Mahyra Tedeschi, Valby van Schijndel, et al.. Current applications using key mineral phases in igneous and metamorphic geology: perspectives for the future. V. van Schijndel, K. Cutts, I. Pereira, M. Guitreau, S. Volante, M. Tedeschi. Minor Minerals, Major Implications: Using Key Mineral Phases to Unravel the Formation and Evolution of Earth's Crust, 537 (1), The Geological Society, pp.57-121, 2023, 978-1-78620-594-0. ⟨10.1144/SP537-2022-254⟩. ⟨hal-04495471⟩
8 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More