SHRIMP U–Pb–Th xenotime (YPO₄ ) geochronology: A novel approach for the correction of SIMS matrix effects
Xenotime (YPO4) occurs in a wide range of geological environments, but its potential to establish the timing of mineralisation and sediment diagenesis has been the focus of most recent studies. Xenotime in these settings usually has a relatively low uranium content (typically < 1000 ppm) compared to igneous xenotime and occurs as microscopic crystals (< 50 μm diameter), either individually or as outgrowths on zircon substrates. Large radius ion microprobes, such as the SHRIMP or Cameca...[Show more]
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