Dear Colleagues, I am pleased to announce the opening of a 4-year PhD scholarship position in the research project entitled "_Immobilization of U and Th by Pb-activated zeolite_" carried out by the LARG research team (https://larg.agh.edu.pl/larg/ ) at the Department of Mineralogy, Petrography and Geochemistry, AGH University of Kraków, Poland. The project is funded by Polish NCN (an equivalent of NSF in USA). The scope of work includes, among others: experimental determination of the extent and mechanism of uranium and thorium immobilization; determination of structure and incorporation mechanisms of U and Th in pyromorphite Pb₅(PO₄)₃Cl; theoretical basis and lab testing of a reactive geochemical barrier composed of a hydroxylapatite - Pb-zeolite mineral mixture for effective immobilization of U(VI) and Th via coprecipitation with pyromorphite on zeolite. The project is run in collaboration with Dr. Peter Burns from the University of Notre Dame. Further details about the position and application process can be found here: https://www.wggios.agh.edu.pl/home/wggios/2025/Konkurs_na_stanowisko_doktoranta-stypendysty_w_projekcie_NCN_OPUS_-_WGGiOS_AGH_.pdf Please send application to project leader: Maciej Manecki at gpmmanec@cyf-kr.edu.pl. Deadline: 2025-08-08 16:00 Please distribute this announcement among students. Best regards, Maciej Manecki -- Maciej Manecki LARG - Lead Apatites Research Group: http://larg.agh.edu.pl Department of Mineralogy, Petrography and Geochemistry, AGH University of Kraków Al. Mickiewicza 30, 30-059 Kraków, POLAND http://orcid.org/0000-0002-4937-1836 cell.: +48 604 427 198, e-mail: gpmmanec@cyf-kr.edu.pl