Multi-stage evolution of xenotime-(Y) from Písek pegmatites, Czech Republic: an electron probe micro-analysis and Raman spectroscopy study

• Autoři: ŠVECOVÁ Eva; ČOPJAKOVÁ Renata; LOSOS Zdeněk; ŠKODA Radek; NASDALA Lutz; CÍCHA Jaroslav
• Rok publikování: 2016
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Mineralogy and Petrology
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• Doi: http://dx.doi.org/10.1007/s00710-016-0442-6
• Obor: Geologie a mineralogie
• Klíčová slova: xenotime-(Y); aqueous fluids; metamictization; recrystallization; alteration; EPMA; Raman spectroscopy
• Popis: The chemical variability, degree of radiation damage, and alteration of xenotime from the Písek granitic pegmatites (Czech Republic) were investigated by micro-chemical analysis and Raman spectroscopy. Dominant large xenotime–(Y) grains enriched in U, Th and Zr crystallized from a melt almost simultaneously with zircon, monazite and tourmaline. Xenotime is well to poorly crystalline depending on its U and Th contents. It shows complex secondary textures cutting magmatic growth zones as a result of its interaction with F, Ca, alkali-rich fluids during the hydrothermal stage of the pegmatite evolution.

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