Mapping radiation damage zoning in zircon using Raman spectroscopy: Implications for zircon chronology
作者: Alyssa J. AndersonJohn M. HancharKip V. HodgesMatthijs C. van Soest
作者单位: 1School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA
2Earth Sciences, Memorial University of Newfoundland, St. John's, NL, Canada
3Department of Geosciences, Princeton University, Princeton, NJ, USA
刊名: Chemical Geology, 2020, Vol.538
来源数据库: Elsevier Journal
DOI: 10.1016/j.chemgeo.2020.119494
关键词: ZirconRadiation damageRaman spectroscopy
英文摘要: Abstract(#br)Recent research has demonstrated the importance of understanding alpha radiation damage in zircon in order to effectively interpret the thermochronologic significance of (U-Th)/He dates and to appropriately select laser ablation U/Pb reference standards. Direct measurements of alpha radiation damage in zircon are most easily done by using Raman spectral response as a proxy. Current Raman microscopes provide the opportunity to quantify not just a crystal's bulk radiation damage, but to map intracrystalline variations in radiation damage related to radionuclide zoning. Here we illustrate the procedure through a detailed study of zoned Proterozoic zircon crystals from the Adirondack Mountains of New York state. Although previous Raman studies have focused on the response of the...
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影响因子:3.154 (2012)

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关键词翻译
关键词翻译
  • zircon 锆石
  • spectroscopy 分光学
  • chronology 年代学
  • zoning 分带
  • radiation 辐射
  • damage 损伤