caa a22 4500 378927132 CHVBK 20180305123620.0 cr unu---uuuuu 161128e20041101xx s 000 0 eng 10.1524/ract.92.9.805.55013 doi (NATIONALLICENCE)gruyter-10.1524/ract.92.9.805.55013 Redistribution of U, Pb and REE in association with alteration of uranium minerals from the Koongarra deposit, Northern Territory, Australia [Elektronische Daten] [Kenji Horie, Hiroshi Hidaka] In order to investigate migration behavior of REE in uranium matrix by alteration, and to understand a chronological history of the alteration processes, in-situ isotopic analysis of U, Pb and REE by using a Sensitive High Resolution Ion MicroProbe (SHRIMP) was applied to the Koongarra uranium deposit sample (Northern Territory, Australia) which contains uraninite and two kinds of secondary uranium minerals (curite and sklodowskite). Highly discordant U-Pb data from all of the uranium minerals suggest that the secondary uranium minerals were formed by sequential alteration of primary uraninite 50-580Ma ago, and subsequently affected by recent weathering. The difference of REE abundance patterns between primary uraninite and secondary uranium minerals show geochemical evidence of REE redistribution during the secondary mineralization by the interaction of primary ore body with meteoric water. © 2004 Oldenbourg Wissenschaftsverlag GmbH Laboratory techniques, experiments nationallicence Analytical chemistry nationallicence Inorganic chemistry nationallicence Horie Kenji aut Hidaka Hiroshi aut Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 92/9-11/2004(2004-11-01), 805-808 0033-8230 92:9-11/2004<805 2004 92 ract https://doi.org/10.1524/ract.92.9.805.55013 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/ract.92.9.805.55013 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Horie Kenji aut NATIONALLICENCE 700 1- Hidaka Hiroshi aut NATIONALLICENCE 773 0- Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 92/9-11/2004(2004-11-01), 805-808 0033-8230 92:9-11/2004<805 2004 92 ract CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter