Szczegóły publikacji
Opis bibliograficzny
Experimental alteration of zircon and xenotime-(Y) using alkali-, and alkaline-rich fluids in an Fe-enriched granitic environment / Fabian Tramm, Bernd Wunder, Bartosz Budzyń, Gabriela A. KOZUB-BUDZYŃ, Krzysztof FOLTYN, Jiří Sláma // Mineralogy and Petrology ; ISSN 0930-0708 . — 2026 — vol. 120 iss. 2, s. 247–271. — Bibliogr. s. 268–271, Abstr. — Publikacja dostępna online od: 2026-05-07
Autorzy (6)
- Tramm Fabian
- Wunder Bernd
- Budzyń Bartosz
- AGHKozub-Budzyń Gabriela A.
- AGHFoltyn Krzysztof
- Sláma Jiří
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 168411 |
|---|---|
| Data dodania do BaDAP | 2026-07-16 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s00710-026-00985-x |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Mineralogy and Petrology |
Abstract
In the present study, the stability of zircon and xenotime-(Y) are experimentally tested by using a mixture of solids including xenotime-(Y), zircon, albite, K-feldspar, muscovite, biotite, magnetite, SiO2 and different fluids, i.e. 2 M KOH, 2 M NaOH, Ca(OH)2 solution, and CaCl2 solution, to replicate a granitic alkali- and Fe-enriched environment in four Au-capsules. The experiments were conducted at 200 MPa, 650 °C and over 7 d. The zircon and xenotime-(Y) were altered at various degrees. The experiment with 2 M KOH resulted in the lowest degree of zircon and xenotime-(Y) alteration, whereas experiments with 2 M NaOH and Ca(OH)2–solution resulted in a moderate degree of alteration with well-developed porosity and partial dissolution of zircon, xenotime-(Y), and magnetite. The U-Pb ages of zircon are significantly disturbed resulting in a reverse discordant trend of data that plot along the concordia curve towards older ages. Xenotime-(Y) U-Pb ages remained mostly undisturbed. The experiment with CaCl2–solution was the most effective considering alteration of the entire mineral assemblage. Xenotime-(Y) and zircon are strongly altered with significantly disturbed U-Pb ages. Furthermore, xenotime-(Y) is partially replaced by secondary britholite-(Y). The experimental results provide new insights to our understanding of xenotime-(Y) and zircon interactions with alkali- and alkaline-rich fluids. The particular importance is that of the observed reverse discordant U-Pb ages of altered zircon and, to a lesser degree, xenotime-(Y) towards older ages along the concordia curve, which may be related to coupled U6+ and Fe2+ mobilization by Fe-bearing reactive fluids due to dissolution of magnetite.
