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Formation of authigenic grey monazite: a marker of palaeo-thermal anomaly in very-low grade metamorphic rocks?

Formation of authigenic grey monazite: a marker of palaeo-thermal anomaly in very-low grade metamorphic rocks?

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1016/j.oregeorev.2023.105583. This is version 1 of this Preprint.

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Authors

Johann Tuduri, Olivier Pourret , Eric Gloaguen, Philippe Lach, Emilie Janots, Sébastien Colin, Jérôme Gouin, ...  more

Abstract

The reassessment of the rare earth element (REE) potential of France led us to investigate REE behaviour in black-shales belonging to the Middle Ordovician Angers-Traveusot formation from central Britany (France), with an emphasis on the formation of nodular grey monazite during the diagenetic and low-grade metamorphic evolution. Temperatures conditions and mass transfer underwent in the black shales were first characterized using rock geochemistry, rock-eval pyrolysis and by gradual changes of clay mineral crystallinity. Then, monazite texture, composition and U–Pb in-situ dating were determined and correlated with the diagenetic/anchimetamo...  more

DOI

https://doi.org/10.31223/X5892R

Subjects

Earth Sciences

Keywords

rare earth elements, Black Shale, Monazite

Dates

Published: 2022-09-07 15:29

Last Updated: 2022-09-07 22:29

License

CC BY Attribution 4.0 International

Additional Metadata

Conflict of interest statement:
None