W. Compston,I. S. Williams,C. Meyer. U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass resolution microprobe.J Geophys Res,1984,89(Suppl):325-334.
[19]
Ludwig K R. Users Manual for Isoplot/Ex:AGeochronological Toolkit for Microsoft excel.Berkeley,CA,USA:2000,:1~53.
[20]
Ludwig KR. Squid1.02:A user manual.Berkeley Geochronological Center Special Publication No.1a.Berkeley:Berkeley Geochronological Center Soecial Publication,2001,.
[21]
Williams I S,Claesson S. Isotopic evidence for thePrecambrian provenance and Caledonian metamorphism ofhighgrade paragneisses from the Seve Nappe,ScandinavianCaledonides:Ionmcroprobe zircon U-Th-Pb.Contributions toMineralogy and Petrology,1987,97:205~217.
[22]
Williams I S. U-Th-Pb geochronology by ion microprobe.Applicationsof Microanalytical Techniques to Understanding MineralingProcesses,1998,(7):1~35.