The trace element content in rutile was analyzed by both electron microprobe (EMP) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for HP granulite in the Bashiwake area of South Altun HP-UHP metamorphic belt. The results indicate that Zr content in rutile from HP granulite measured by EMP coincides with the measured by LA-ICP-MS within experimental error. Zr-in-rutile thermometry of Thomkins et al. The results further show that HP granulites in the Bashiwake area of South Altun HP-UHP metamorphic belt experienced peak conditions at ultrahigh temperature and high pressure, followed by medium temperature granulite facies conditions related to retrogression.
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