EPMA and PIXE dating of monazite in granulites from Stary Gierałtów, NE Bohemian Massif, Poland
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- 作者：Monika A. Kusiak ; Kazuhiro Suzuki ; Daniel J. Dunkley ; Janusz Lekki ; Nonna Bakun-Czubarow ; Mariusz Paszkowski ; Bartosz Budzyń
- 关键词：Monazite dating ; CHIME ; PIXE ; Orlica-Ś ; nież ; nik Dome ; Bohemian Massif
- 刊名：Gondwana Research
- 出版年：2008
- 出版时间：December 2008
- 年：2008
- 卷：14
- 期：4
- 页码：675-685
- 全文大小：1090 K
文摘
Chemical Th–U–total Pb (CHIME) dating of monazite by electron probe microanalyzer (EPMA) and proton microprobe (PIXE) was carried out on felsic granulites from Stary Gierałtów, Poland, which represent part of the Orlica-Śnieżnik Dome in the NE Bohemian Massif. Analyzed monazite is characterized by mosaic zoning rather than simple core-to-rim growth, and strontium contents of up to 750ppm. An isochron age of 347 ± 13Ma represents timing of amphibolite-facies metamorphism, in agreement with previously published estimates.