This is a Preprint and has not been peer reviewed.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.

Formation of authigenic grey monazite: a marker of palaeo-thermal anomaly in very-low grade metamorphic rocks?
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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
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Conflict of interest statement:
None
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