U-Pb (ID-TIMS) Geochronological Studies of High-Uranium Metamict Zircons: New Opportunities of Familiar Approaches

The possibility of the application of high-uranium self-irradiation-damaged metamict zircon for U-Pb geochronological studies (ID-TIMS) after preliminary high-temperature annealing and acid treatment was demonstrated using zircon from the Li–F granites of the Turga massif (Eastern Transbaikalia). Op...

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Bibliographic Details
Published inPetrology Vol. 29; no. 6; pp. 676 - 685
Main Authors Ivanova, A. A., Salnikova, E. B., Kotov, A. B., Plotkina, Yu. V., Tolmacheva, E. V., Syritso, L. F., Bocharov, V. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.11.2021
Springer Nature B.V
Subjects
Annealing
Earth and Environmental Science
Earth Sciences
Geochemistry
Geochronology
Geochronometry
High temperature
Irradiation
Lead
Massifs
Mineralogy
Radiation damage
Radiation dosage
Temperature
Uranium
Zircon
α Radiation
acid treatment
zircon
U-Pb geochronological studies
Turga massif
high-temperature annealing
Eastern Transbaikalia
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Summary:The possibility of the application of high-uranium self-irradiation-damaged metamict zircon for U-Pb geochronological studies (ID-TIMS) after preliminary high-temperature annealing and acid treatment was demonstrated using zircon from the Li–F granites of the Turga massif (Eastern Transbaikalia). Optimal conditions of high-temperature annealing and acid treatment of zircon with high self-irradiation α-dose can be selected to remove completely a metamict phase and preserve sufficient quantities of the mineral for U-Pb (ID-TIMS) studies.
ISSN:0869-5911
1556-2085
DOI:10.1134/S0869591121060047