Research project funded by National Science Centre 2017/27/B/ST10/00813
(29.06.2018 – 28.06.2022)
“Mineral transformations and REE, Th, U, Pb distribution during alteration processes of monazite, xenotime and allanite in nano- and microscale, and analytical improvements of electron probe microanalysis and Raman micro-spectroscopy for these phases”
Primary Investigator: Bartosz Budzyń
The project aims to determine nano- and microscale mechanisms of monazite, xenotime and allanite alteration, and their impact on isotopic U-Pb record, as well as to improve selected microanalytical methods. The nanoscale observations provided crucial insights into reconstructions of fluid-mediated coupled dissolution-reprecipitation process, which is the main mechanism of alteration of monazite, xenotime and allanite. The isotopic LA-ICP-MS analyses of experimentally altered monazite and xenotime demonstrate degree of disturbance of the U-Pb age system as a factor of P-T conditions; these results will have crucial implications on the monazite and xenotime petrochronology studies.