Monazite U–Pb and Th–Pb geochronology by ion microprobe, with an application to in situ dating of an Archean metasedimentary rock

@inproceedings{Stern2001MonaziteUA,
  title={Monazite U–Pb and Th–Pb geochronology by ion microprobe, with an application to in situ dating of an Archean metasedimentary rock},
  author={Richard A Stern and Robert G. Berman},
  year={2001}
}
Abstract Monazite grains from nine different Precambrian rock samples and having concordant isotope dilution U–Pb and Th–Pb ages were used to develop and evaluate techniques for U–Pb, Th–Pb, and Pb–Pb isotopic dating using an ion microprobe operating at high mass resolution ( R =5500, 1%). An unidentified isobar at ∼203.960 amu complicated the determination of 204 Pb in the monazites with higher Th, but it appeared to have been eliminated when using a slight energy offset. The 207 Pb*/ 206 Pb… CONTINUE READING

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